---
_id: '17622'
abstract:
- lang: eng
text: Graham et al. discovered a supermassive black hole binary (SMBHB) candidate
and identified the detected 5.2 yr period of the optical variability as the orbital
period of the binary. Hydrodynamical simulations predict multiple periodic components
for the variability of SMBHBs, thus raising the possibility that the true period
of the binary is different from 5.2 yr. We analyse the periodogram of PG1302 and
find no compelling evidence for additional peaks. We also point out that, despite
the 5.2 yr peak being significant if a single source is considered, further analysis
is required to account for the fact that PG1302 was selected among a large sample
of 247 000 quasars. We derive upper limits on any additional periodic modulations
in the available data, by modelling the light curve as the sum of stochastic noise
and the known 5.2 yr periodic component, and injecting additional sinusoidal signals.
We find that, with the current data, we would be able to detect with high significance
(false alarm probability <1 per cent) secondary periodic terms, with periods in
the range predicted by the simulations, if the amplitude of the variability was
at least ∼0.06 mag (compared to 0.14 mag for the main sinusoid). A three-year
follow-up monitoring campaign with weekly observations can increase the sensitivity
for detecting secondary peaks by ≈50 per cent, and would allow a more robust test
of predictions from hydrodynamical simulations.
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Charisi, M.
last_name: Charisi
- first_name: I.
full_name: Bartos, I.
last_name: Bartos
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: A. M.
full_name: Price-Whelan, A. M.
last_name: Price-Whelan
- first_name: S.
full_name: Márka, S.
last_name: Márka
citation:
ama: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 2015;454(1):L21-L25.
doi:10.1093/mnrasl/slv111'
apa: 'Charisi, M., Bartos, I., Haiman, Z., Price-Whelan, A. M., & Márka, S.
(2015). Multiple periods in the variability of the supermassive black hole binary
candidate quasar PG1302-102? Monthly Notices of the Royal Astronomical Society:
Letters. Oxford University Press. https://doi.org/10.1093/mnrasl/slv111'
chicago: 'Charisi, M., I. Bartos, Zoltán Haiman, A. M. Price-Whelan, and S. Márka.
“Multiple Periods in the Variability of the Supermassive Black Hole Binary Candidate
Quasar PG1302-102?” Monthly Notices of the Royal Astronomical Society: Letters.
Oxford University Press, 2015. https://doi.org/10.1093/mnrasl/slv111.'
ieee: 'M. Charisi, I. Bartos, Z. Haiman, A. M. Price-Whelan, and S. Márka, “Multiple
periods in the variability of the supermassive black hole binary candidate quasar
PG1302-102?,” Monthly Notices of the Royal Astronomical Society: Letters,
vol. 454, no. 1. Oxford University Press, pp. L21–L25, 2015.'
ista: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. 2015. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 454(1), L21–L25.'
mla: 'Charisi, M., et al. “Multiple Periods in the Variability of the Supermassive
Black Hole Binary Candidate Quasar PG1302-102?” Monthly Notices of the Royal
Astronomical Society: Letters, vol. 454, no. 1, Oxford University Press, 2015,
pp. L21–25, doi:10.1093/mnrasl/slv111.'
short: 'M. Charisi, I. Bartos, Z. Haiman, A.M. Price-Whelan, S. Márka, Monthly Notices
of the Royal Astronomical Society: Letters 454 (2015) L21–L25.'
date_created: 2024-09-05T13:51:39Z
date_published: 2015-09-11T00:00:00Z
date_updated: 2024-09-24T08:34:12Z
day: '11'
doi: 10.1093/mnrasl/slv111
extern: '1'
intvolume: ' 454'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnrasl/slv111
month: '09'
oa: 1
oa_version: Published Version
page: L21-L25
publication: 'Monthly Notices of the Royal Astronomical Society: Letters'
publication_identifier:
issn:
- 1745-3933
- 1745-3925
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multiple periods in the variability of the supermassive black hole binary candidate
quasar PG1302-102?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 454
year: '2015'
...
---
_id: '17641'
abstract:
- lang: eng
text: 'In order to elucidate the origin of spin in both dark matter and baryons
in galaxies, we have performed hydrodynamical simulations from cosmological initial
conditions. We study atomic cooling haloes in the redshift range 100>z>9 with
masses of order 109M⊙ at redshift z=10. We assume that the gas has primordial
composition and that H2-cooling and prior star-formation in the haloes have been
suppressed. We present a comprehensive analysis of the gas and dark matter properties
of four halos with very low (λ≈0.01), low (λ≈0.04), high (λ≈0.06) and very high
(λ≈0.1) spin parameter. Our main conclusion is that the spin orientation and magnitude
is initially well described by tidal torque linear theory, but later on is determined
by the merging and accretion history of each halo. We provide evidence that the
topology of the merging region, i.e. the number of colliding filaments, gives
an accurate prediction for the spin of dark matter and gas: halos at the center
of knots will have low spin while those in the center of filaments will have high
spin. The spin of a halo is given by λ≈0.05×(7.6/numberoffilaments)^5.1'
article_processing_charge: No
article_type: original
author:
- first_name: Joaquin
full_name: Prieto, Joaquin
last_name: Prieto
- first_name: Raul
full_name: Jimenez, Raul
last_name: Jimenez
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Roberto E.
full_name: González, Roberto E.
last_name: González
citation:
ama: 'Prieto J, Jimenez R, Haiman Z, González RE. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 2015;452(1):784-802. doi:10.1093/mnras/stv1234'
apa: 'Prieto, J., Jimenez, R., Haiman, Z., & González, R. E. (2015). The origin
of spin in galaxies: Clues from simulations of atomic cooling haloes. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv1234'
chicago: 'Prieto, Joaquin, Raul Jimenez, Zoltán Haiman, and Roberto E. González.
“The Origin of Spin in Galaxies: Clues from Simulations of Atomic Cooling Haloes.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2015. https://doi.org/10.1093/mnras/stv1234.'
ieee: 'J. Prieto, R. Jimenez, Z. Haiman, and R. E. González, “The origin of spin
in galaxies: Clues from simulations of atomic cooling haloes,” Monthly Notices
of the Royal Astronomical Society, vol. 452, no. 1. Oxford University Press,
pp. 784–802, 2015.'
ista: 'Prieto J, Jimenez R, Haiman Z, González RE. 2015. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 452(1), 784–802.'
mla: 'Prieto, Joaquin, et al. “The Origin of Spin in Galaxies: Clues from Simulations
of Atomic Cooling Haloes.” Monthly Notices of the Royal Astronomical Society,
vol. 452, no. 1, Oxford University Press, 2015, pp. 784–802, doi:10.1093/mnras/stv1234.'
short: J. Prieto, R. Jimenez, Z. Haiman, R.E. González, Monthly Notices of the Royal
Astronomical Society 452 (2015) 784–802.
date_created: 2024-09-06T07:18:53Z
date_published: 2015-07-08T00:00:00Z
date_updated: 2024-09-24T11:52:00Z
day: '08'
doi: 10.1093/mnras/stv1234
extern: '1'
intvolume: ' 452'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv1234
month: '07'
oa: 1
oa_version: Published Version
page: 784-802
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The origin of spin in galaxies: Clues from simulations of atomic cooling haloes'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 452
year: '2015'
...
---
_id: '17652'
abstract:
- lang: eng
text: Because most large galaxies contain a central black hole, and galaxies often
merge, black-hole binaries are expected to be common in galactic nuclei. Although
they cannot be imaged, periodicities in the light curves of quasars have been
interpreted as evidence for binaries, most recently in PG~1302-102, with a short
rest-frame optical period of 4 years. If the orbital period matches this value,
then for the range of estimated black hole masses the components would be separated
by 0.007-0.017 pc, implying relativistic orbital speeds. There has been much debate
over whether black hole orbits could be smaller than 1 pc. Here we show that the
amplitude and the sinusoid-like shape of the variability of PG~1302-102 can be
fit by relativistic Doppler boosting of emission from a compact, steadily accreting,
unequal-mass binary. We predict that brightness variations in the ultraviolet
light curve track those in the optical, but with a 2-3 times larger amplitude.
This prediction is relatively insensitive to the details of the emission process,
and is consistent with archival UV data. Follow-up UV and optical observations
in the next few years can test this prediction and confirm the existence of a
binary black hole in the relativistic regime.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Daniel J.
full_name: D'Orazio, Daniel J.
last_name: D'Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: David
full_name: Schiminovich, David
last_name: Schiminovich
citation:
ama: D’Orazio DJ, Haiman Z, Schiminovich D. Relativistic boost as the cause of periodicity
in a massive black-hole binary candidate. Nature. 2015;525(7569):351-353.
doi:10.1038/nature15262
apa: D’Orazio, D. J., Haiman, Z., & Schiminovich, D. (2015). Relativistic boost
as the cause of periodicity in a massive black-hole binary candidate. Nature.
Springer Science and Business Media LLC. https://doi.org/10.1038/nature15262
chicago: D’Orazio, Daniel J., Zoltán Haiman, and David Schiminovich. “Relativistic
Boost as the Cause of Periodicity in a Massive Black-Hole Binary Candidate.” Nature.
Springer Science and Business Media LLC, 2015. https://doi.org/10.1038/nature15262.
ieee: D. J. D’Orazio, Z. Haiman, and D. Schiminovich, “Relativistic boost as the
cause of periodicity in a massive black-hole binary candidate,” Nature,
vol. 525, no. 7569. Springer Science and Business Media LLC, pp. 351–353, 2015.
ista: D’Orazio DJ, Haiman Z, Schiminovich D. 2015. Relativistic boost as the cause
of periodicity in a massive black-hole binary candidate. Nature. 525(7569), 351–353.
mla: D’Orazio, Daniel J., et al. “Relativistic Boost as the Cause of Periodicity
in a Massive Black-Hole Binary Candidate.” Nature, vol. 525, no. 7569,
Springer Science and Business Media LLC, 2015, pp. 351–53, doi:10.1038/nature15262.
short: D.J. D’Orazio, Z. Haiman, D. Schiminovich, Nature 525 (2015) 351–353.
date_created: 2024-09-06T07:30:45Z
date_published: 2015-09-16T00:00:00Z
date_updated: 2024-09-24T13:22:24Z
day: '16'
doi: 10.1038/nature15262
extern: '1'
external_id:
arxiv:
- '1509.04301'
intvolume: ' 525'
issue: '7569'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1509.04301'
month: '09'
oa: 1
oa_version: Preprint
page: 351-353
publication: Nature
publication_identifier:
issn:
- 0028-0836
- 1476-4687
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
scopus_import: '1'
status: public
title: Relativistic boost as the cause of periodicity in a massive black-hole binary
candidate
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 525
year: '2015'
...
---
_id: '17663'
abstract:
- lang: eng
text: Recently, Planck measured a value of the cosmic microwave background (CMB)
optical depth due to electron scattering of τ=0.066±0.016. Here we show that this
low value leaves essentially no room for an early partial reionisation of the
intergalactic medium (IGM) by high-redshift Population III (Pop III) stars, expected
to have formed in low-mass minihaloes. We perform semi-analytic calculations of
reionisation which include the contribution from Pop II stars in atomic cooling
haloes, calibrated with high-redshift galaxy observations, and Pop III stars in
minihaloes with feedback due to Lyman-Werner (LW) radiation and metal enrichment.
We find that without LW feedback or prompt metal enrichment (and assuming a minihalo
escape fraction of 0.5) the Pop III star formation efficiency cannot exceed ∼a
few×10−4, without violating the constraints set by Planck data. This excludes
massive Pop III star formation in typical 106M⊙ minihaloes. Including LW feedback
and metal enrichment alleviates this tension, allowing large Pop III stars to
form early on before they are quenched by feedback. We find that the total density
of Pop III stars formed across cosmic time is ≲104−5 M⊙ Mpc−3 and does not depend
strongly on the feedback prescription adopted. Additionally, we perform a simple
estimate of the possible impact on reionisation of X-rays produced by accretion
onto black hole remnants of Pop III stars. We find that unless the accretion duty
cycle is very low (≲0.01), this could lead to an optical depth inconsistent with
Planck.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: Visbal E, Haiman Z, Bryan GL. Limits on population III star formation in minihaloes
implied by Planck. Monthly Notices of the Royal Astronomical Society. 2015;453(4):4457-4467.
doi:10.1093/mnras/stv1941
apa: Visbal, E., Haiman, Z., & Bryan, G. L. (2015). Limits on population III
star formation in minihaloes implied by Planck. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv1941
chicago: Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Limits on Population III
Star Formation in Minihaloes Implied by Planck.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv1941.
ieee: E. Visbal, Z. Haiman, and G. L. Bryan, “Limits on population III star formation
in minihaloes implied by Planck,” Monthly Notices of the Royal Astronomical
Society, vol. 453, no. 4. Oxford University Press, pp. 4457–4467, 2015.
ista: Visbal E, Haiman Z, Bryan GL. 2015. Limits on population III star formation
in minihaloes implied by Planck. Monthly Notices of the Royal Astronomical Society.
453(4), 4457–4467.
mla: Visbal, Eli, et al. “Limits on Population III Star Formation in Minihaloes
Implied by Planck.” Monthly Notices of the Royal Astronomical Society,
vol. 453, no. 4, Oxford University Press, 2015, pp. 4457–67, doi:10.1093/mnras/stv1941.
short: E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society 453 (2015) 4457–4467.
date_created: 2024-09-06T07:40:38Z
date_published: 2015-09-16T00:00:00Z
date_updated: 2024-09-25T07:32:20Z
day: '16'
doi: 10.1093/mnras/stv1941
extern: '1'
external_id:
arxiv:
- '1505.06359'
intvolume: ' 453'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1505.06359'
month: '09'
oa: 1
oa_version: Preprint
page: 4457-4467
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Limits on population III star formation in minihaloes implied by Planck
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 453
year: '2015'
...
---
_id: '17685'
abstract:
- lang: eng
text: We propose an observational test for gravitationally recoiling supermassive
black holes (BHs) in active galactic nuclei, based on a correlation between the
velocities of BHs relative to their host galaxies, |\Delta v|, and their obscuring
dust column densities, \Sigma_{dust} (both measured along the line of sight).
We use toy models for the distribution of recoil velocities, BH trajectories,
and the geometry of obscuring dust tori in galactic centres, to simulate 2.5x10^5
random observations of recoiling quasars. BHs with recoil velocities comparable
to the escape velocity from the galactic centre remain bound to the nucleus, and
do not fully settle back to the centre of the torus due to dynamical friction
in a typical quasar lifetime. We find that |\Delta v| and \Sigma_ {dust} for these
BHs are positively correlated. For obscured (\Sigma_{dust}>0) and for partially
obscured (0<\Sigma_{dust}<~2.3 g/m^2) quasars with |\Delta v|>=45 km/s, the sample
correlation coefficient between log10(|\Delta v|) and \Sigma_{dust} is r_{45}
= 0.28+/-0.02 and r_{45} = 0.13+/-0.02, respectively. Allowing for random +/-100
km/s errors in |\Delta v| unrelated to the recoil dilutes the correlation for
the partially obscured quasars to r_{45} = 0.026+/-0.004 measured between |\Delta
v| and \Sigma_{dust}. A random sample of >~3,500 obscured quasars with |\Delta
v|>=45 km/s would allow rejection of the no-correlation hypothesis with 3 sigma
significance 95% of the time. Finally, we find that the fraction of obscured quasars,
F_{obs}(|\Delta v|), decreases with |\Delta v| from F_{obs}(<10 km/s)>~0.8 to
F_{obs}(>10^3 km/s)<~0.4. This predicted trend can be compared to the observed
fraction of type II quasars, and can further test combinations of recoil, trajectory,
and dust torus models.
article_processing_charge: No
article_type: original
author:
- first_name: P.
full_name: Raffai, P.
last_name: Raffai
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Z.
full_name: Frei, Z.
last_name: Frei
citation:
ama: Raffai P, Haiman Z, Frei Z. A statistical method to search for recoiling supermassive
black holes in active galactic nuclei. Monthly Notices of the Royal Astronomical
Society. 2015;455(1):484-492. doi:10.1093/mnras/stv2371
apa: Raffai, P., Haiman, Z., & Frei, Z. (2015). A statistical method to search
for recoiling supermassive black holes in active galactic nuclei. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv2371
chicago: Raffai, P., Zoltán Haiman, and Z. Frei. “A Statistical Method to Search
for Recoiling Supermassive Black Holes in Active Galactic Nuclei.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2015.
https://doi.org/10.1093/mnras/stv2371.
ieee: P. Raffai, Z. Haiman, and Z. Frei, “A statistical method to search for recoiling
supermassive black holes in active galactic nuclei,” Monthly Notices of the
Royal Astronomical Society, vol. 455, no. 1. Oxford University Press, pp.
484–492, 2015.
ista: Raffai P, Haiman Z, Frei Z. 2015. A statistical method to search for recoiling
supermassive black holes in active galactic nuclei. Monthly Notices of the Royal
Astronomical Society. 455(1), 484–492.
mla: Raffai, P., et al. “A Statistical Method to Search for Recoiling Supermassive
Black Holes in Active Galactic Nuclei.” Monthly Notices of the Royal Astronomical
Society, vol. 455, no. 1, Oxford University Press, 2015, pp. 484–92, doi:10.1093/mnras/stv2371.
short: P. Raffai, Z. Haiman, Z. Frei, Monthly Notices of the Royal Astronomical
Society 455 (2015) 484–492.
date_created: 2024-09-06T08:20:30Z
date_published: 2015-11-02T00:00:00Z
date_updated: 2024-09-25T09:18:47Z
day: '02'
doi: 10.1093/mnras/stv2371
extern: '1'
intvolume: ' 455'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv2371
month: '11'
oa: 1
oa_version: Published Version
page: 484-492
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A statistical method to search for recoiling supermassive black holes in active
galactic nuclei
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 455
year: '2015'
...
---
_id: '17694'
abstract:
- lang: eng
text: Constraining the properties of Population III (Pop III) stars will be very
challenging because they reside in small galaxies at high redshift which will
be difficult to directly detect. In this paper, we suggest that intensity mapping
may be a promising method to study Pop III stars. Intensity mapping is a technique
proposed to measure large-scale fluctuations of galaxy line emission in three
dimensions without resolving individual sources. This technique is well suited
for observing many faint galaxies because it can measure their cumulative emission
even if they cannot be directly detected. We focus on intensity mapping of He
ii recombination lines. These lines are much stronger in Pop III stars than Pop
II stars because the harder spectra of Pop III stars are expected to produce many
He ii ionizing photons. Measuring the He ii 1640 Å intensity mapping signal, along
with the signals from other lines such as Lyα, Hα, and metal lines, could give
constraints on the initial mass function (IMF) and star formation rate density
of Pop III stars as a function of redshift. To demonstrate the feasibility of
these observations, we estimate the strength of the Pop III He ii 1640 Å intensity
mapping signal from z = 10–20. We show that at z ≈ 10, the signal could be measured
accurately by two different hypothetical future instruments, one which cross-correlates
He ii 1640 Å with CO(1–0) line emission from galaxies and the other with 21 cm
emission from the intergalactic medium.
article_processing_charge: No
article_type: original
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: Visbal E, Haiman Z, Bryan GL. Looking for Population III stars with He ii line
intensity mapping. Monthly Notices of the Royal Astronomical Society. 2015;450(3):2506-2513.
doi:10.1093/mnras/stv785
apa: Visbal, E., Haiman, Z., & Bryan, G. L. (2015). Looking for Population III
stars with He ii line intensity mapping. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stv785
chicago: Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Looking for Population
III Stars with He Ii Line Intensity Mapping.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv785.
ieee: E. Visbal, Z. Haiman, and G. L. Bryan, “Looking for Population III stars with
He ii line intensity mapping,” Monthly Notices of the Royal Astronomical Society,
vol. 450, no. 3. Oxford University Press, pp. 2506–2513, 2015.
ista: Visbal E, Haiman Z, Bryan GL. 2015. Looking for Population III stars with
He ii line intensity mapping. Monthly Notices of the Royal Astronomical Society.
450(3), 2506–2513.
mla: Visbal, Eli, et al. “Looking for Population III Stars with He Ii Line Intensity
Mapping.” Monthly Notices of the Royal Astronomical Society, vol. 450,
no. 3, Oxford University Press, 2015, pp. 2506–13, doi:10.1093/mnras/stv785.
short: E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society 450 (2015) 2506–2513.
date_created: 2024-09-06T08:40:33Z
date_published: 2015-05-06T00:00:00Z
date_updated: 2024-09-25T10:05:24Z
day: '06'
doi: 10.1093/mnras/stv785
extern: '1'
intvolume: ' 450'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv785
month: '05'
oa: 1
oa_version: Published Version
page: 2506-2513
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Looking for Population III stars with He ii line intensity mapping
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 450
year: '2015'
...
---
_id: '17702'
abstract:
- lang: eng
text: Weak gravitational lensing is a powerful cosmological probe, with non--Gaussian
features potentially containing the majority of the information. We examine constraints
on the parameter triplet (Ωm,w,σ8) from non-Gaussian features of the weak lensing
convergence field, including a set of moments (up to 4th order) and Minkowski
functionals, using publicly available data from the 154deg2 CFHTLenS survey. We
utilize a suite of ray--tracing N-body simulations spanning 91 points in (Ωm,w,σ8)
parameter space, replicating the galaxy sky positions, redshifts and shape noise
in the CFHTLenS catalogs. We then build an emulator that interpolates the simulated
descriptors as a function of (Ωm,w,σ8), and use it to compute the likelihood function
and parameter constraints. We employ a principal component analysis to reduce
dimensionality and to help stabilize the constraints with respect to the number
of bins used to construct each statistic. Using the full set of statistics, we
find Σ8≡σ8(Ωm/0.27)^0.55=0.75±0.04 (68% C.L.), in agreement with previous values.
We find that constraints on the (Ωm,σ8) doublet from the Minkowski functionals
suffer a strong bias. However, high-order moments break the (Ωm,σ8) degeneracy
and provide a tight constraint on these parameters with no apparent bias. The
main contribution comes from quartic moments of derivatives.
article_number: '103511'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Morgan
full_name: May, Morgan
last_name: May
- first_name: Lam
full_name: Hui, Lam
last_name: Hui
- first_name: Jan M.
full_name: Kratochvil, Jan M.
last_name: Kratochvil
citation:
ama: 'Petri A, Liu J, Haiman Z, May M, Hui L, Kratochvil JM. Emulating the CFHTLenS
weak lensing data: Cosmological constraints from moments and Minkowski functionals.
Physical Review D. 2015;91(10). doi:10.1103/physrevd.91.103511'
apa: 'Petri, A., Liu, J., Haiman, Z., May, M., Hui, L., & Kratochvil, J. M.
(2015). Emulating the CFHTLenS weak lensing data: Cosmological constraints from
moments and Minkowski functionals. Physical Review D. American Physical
Society. https://doi.org/10.1103/physrevd.91.103511'
chicago: 'Petri, Andrea, Jia Liu, Zoltán Haiman, Morgan May, Lam Hui, and Jan M.
Kratochvil. “Emulating the CFHTLenS Weak Lensing Data: Cosmological Constraints
from Moments and Minkowski Functionals.” Physical Review D. American Physical
Society, 2015. https://doi.org/10.1103/physrevd.91.103511.'
ieee: 'A. Petri, J. Liu, Z. Haiman, M. May, L. Hui, and J. M. Kratochvil, “Emulating
the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski
functionals,” Physical Review D, vol. 91, no. 10. American Physical Society,
2015.'
ista: 'Petri A, Liu J, Haiman Z, May M, Hui L, Kratochvil JM. 2015. Emulating the
CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski
functionals. Physical Review D. 91(10), 103511.'
mla: 'Petri, Andrea, et al. “Emulating the CFHTLenS Weak Lensing Data: Cosmological
Constraints from Moments and Minkowski Functionals.” Physical Review D,
vol. 91, no. 10, 103511, American Physical Society, 2015, doi:10.1103/physrevd.91.103511.'
short: A. Petri, J. Liu, Z. Haiman, M. May, L. Hui, J.M. Kratochvil, Physical Review
D 91 (2015).
date_created: 2024-09-06T08:48:07Z
date_published: 2015-05-15T00:00:00Z
date_updated: 2024-09-25T11:29:05Z
day: '15'
doi: 10.1103/physrevd.91.103511
extern: '1'
external_id:
arxiv:
- '1503.06214'
intvolume: ' 91'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1503.06214'
month: '05'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 1550-7998
- 1550-2368
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments
and Minkowski functionals'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 91
year: '2015'
...
---
_id: '17710'
abstract:
- lang: eng
text: Lensing peaks have been proposed as a useful statistic, containing cosmological
information from non-Gaussianities that is inaccessible from traditional two-point
statistics such as the power spectrum or two-point correlation functions. Here
we examine constraints on cosmological parameters from weak lensing peak counts,
using the publicly available data from the 154 deg^2 CFHTLenS survey. We utilize
a new suite of ray-tracing N-body simulations on a grid of 91 cosmological models,
covering broad ranges of the three parameters Ωm, σ8, and w, and replicating the
Galaxy sky positions, redshifts, and shape noise in the CFHTLenS observations.
We then build an emulator that interpolates the power spectrum and the peak counts
to an accuracy of ≤5%, and compute the likelihood in the three-dimensional parameter
space (Ωm, σ8, w) from both observables. We find that constraints from peak counts
are comparable to those from the power spectrum, and somewhat tighter when different
smoothing scales are combined. Neither observable can constrain w without external
data. When the power spectrum and peak counts are combined, the area of the error
"banana'' in the (Ωm, σ8) plane reduces by a factor of ≈2, compared to using the
power spectrum alone. For a flat Λ cold dark matter model, combining both statistics,
we obtain the constraint σ8(Ωm/0.27)^0.63=0.85+0.03−0.03.
article_number: '063507'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Lam
full_name: Hui, Lam
last_name: Hui
- first_name: Jan M.
full_name: Kratochvil, Jan M.
last_name: Kratochvil
- first_name: Morgan
full_name: May, Morgan
last_name: May
citation:
ama: Liu J, Petri A, Haiman Z, Hui L, Kratochvil JM, May M. Cosmology constraints
from the weak lensing peak counts and the power spectrum in CFHTLenS data. Physical
Review D. 2015;91(6). doi:10.1103/physrevd.91.063507
apa: Liu, J., Petri, A., Haiman, Z., Hui, L., Kratochvil, J. M., & May, M. (2015).
Cosmology constraints from the weak lensing peak counts and the power spectrum
in CFHTLenS data. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.91.063507
chicago: Liu, Jia, Andrea Petri, Zoltán Haiman, Lam Hui, Jan M. Kratochvil, and
Morgan May. “Cosmology Constraints from the Weak Lensing Peak Counts and the Power
Spectrum in CFHTLenS Data.” Physical Review D. American Physical Society,
2015. https://doi.org/10.1103/physrevd.91.063507.
ieee: J. Liu, A. Petri, Z. Haiman, L. Hui, J. M. Kratochvil, and M. May, “Cosmology
constraints from the weak lensing peak counts and the power spectrum in CFHTLenS
data,” Physical Review D, vol. 91, no. 6. American Physical Society, 2015.
ista: Liu J, Petri A, Haiman Z, Hui L, Kratochvil JM, May M. 2015. Cosmology constraints
from the weak lensing peak counts and the power spectrum in CFHTLenS data. Physical
Review D. 91(6), 063507.
mla: Liu, Jia, et al. “Cosmology Constraints from the Weak Lensing Peak Counts and
the Power Spectrum in CFHTLenS Data.” Physical Review D, vol. 91, no. 6,
063507, American Physical Society, 2015, doi:10.1103/physrevd.91.063507.
short: J. Liu, A. Petri, Z. Haiman, L. Hui, J.M. Kratochvil, M. May, Physical Review
D 91 (2015).
date_created: 2024-09-06T08:54:57Z
date_published: 2015-03-04T00:00:00Z
date_updated: 2024-09-25T12:03:54Z
day: '04'
doi: 10.1103/physrevd.91.063507
extern: '1'
external_id:
arxiv:
- '1412.0757'
intvolume: ' 91'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1412.0757'
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 1550-7998
- 1550-2368
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cosmology constraints from the weak lensing peak counts and the power spectrum
in CFHTLenS data
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 91
year: '2015'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '1788'
abstract:
- lang: eng
text: We fabricate and characterize a microscale silicon opto-electromechanical
system whose mechanical motion is coupled capacitively to an electrical circuit
and optically via radiation pressure to a photonic crystal cavity. To achieve
large electromechanical interaction strength, we implement an inverse shadow mask
fabrication scheme which obtains capacitor gaps as small as 30 nm while maintaining
a silicon surface quality necessary for minimizing optical loss. Using the sensitive
optical read-out of the photonic crystal cavity, we characterize the linear and
nonlinear capacitive coupling to the fundamental ωm=2π = 63 MHz in-plane flexural
motion of the structure, showing that the large electromechanical coupling in
such devices may be suitable for realizing efficient microwave-to-optical signal
conversion.
acknowledgement: This work was supported by the DARPA MESO program, the AFOSR Hybrid
Nanophotonics MURI, the Institute for Quantum Information and Matter, an NSF Physics
Frontiers Center with support of the Gordon and Betty Moore Foundation, and the
Kavli Nanoscience Institute at Caltech. AP gratefully acknowledge funding from EU
through Marie Curie Actions, project NEMO (GA 298861). AT acknowledges partial financial
support from the ERC through the advanced grant SoulMan
article_processing_charge: No
article_type: original
author:
- first_name: Alessandro
full_name: Pitanti, Alessandro
last_name: Pitanti
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Amir
full_name: Safavi Naeini, Amir
last_name: Safavi Naeini
- first_name: Jeff
full_name: Hill, Jeff
last_name: Hill
- first_name: Chan
full_name: Lei, Chan
last_name: Lei
- first_name: Alessandro
full_name: Tredicucci, Alessandro
last_name: Tredicucci
- first_name: Oskar
full_name: Painter, Oskar
last_name: Painter
citation:
ama: Pitanti A, Fink JM, Safavi Naeini A, et al. Strong opto-electro-mechanical
coupling in a silicon photonic crystal cavity. Optics Express. 2015;23(3):3196-3208.
doi:10.1364/OE.23.003196
apa: Pitanti, A., Fink, J. M., Safavi Naeini, A., Hill, J., Lei, C., Tredicucci,
A., & Painter, O. (2015). Strong opto-electro-mechanical coupling in a silicon
photonic crystal cavity. Optics Express. Optica Publishing Group. https://doi.org/10.1364/OE.23.003196
chicago: Pitanti, Alessandro, Johannes M Fink, Amir Safavi Naeini, Jeff Hill, Chan
Lei, Alessandro Tredicucci, and Oskar Painter. “Strong Opto-Electro-Mechanical
Coupling in a Silicon Photonic Crystal Cavity.” Optics Express. Optica
Publishing Group, 2015. https://doi.org/10.1364/OE.23.003196.
ieee: A. Pitanti et al., “Strong opto-electro-mechanical coupling in a silicon
photonic crystal cavity,” Optics Express, vol. 23, no. 3. Optica Publishing
Group, pp. 3196–3208, 2015.
ista: Pitanti A, Fink JM, Safavi Naeini A, Hill J, Lei C, Tredicucci A, Painter
O. 2015. Strong opto-electro-mechanical coupling in a silicon photonic crystal
cavity. Optics Express. 23(3), 3196–3208.
mla: Pitanti, Alessandro, et al. “Strong Opto-Electro-Mechanical Coupling in a Silicon
Photonic Crystal Cavity.” Optics Express, vol. 23, no. 3, Optica Publishing
Group, 2015, pp. 3196–208, doi:10.1364/OE.23.003196.
short: A. Pitanti, J.M. Fink, A. Safavi Naeini, J. Hill, C. Lei, A. Tredicucci,
O. Painter, Optics Express 23 (2015) 3196–3208.
date_created: 2018-12-11T11:54:01Z
date_published: 2015-02-09T00:00:00Z
date_updated: 2026-05-19T08:32:24Z
day: '09'
doi: 10.1364/OE.23.003196
extern: '1'
external_id:
pmid:
- '25836178'
intvolume: ' 23'
issue: '3'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1364/OE.23.003196
month: '02'
oa: 1
oa_version: Published Version
page: 3196 - 3208
pmid: 1
publication: Optics Express
publication_identifier:
eissn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
publist_id: '5325'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Strong opto-electro-mechanical coupling in a silicon photonic crystal cavity
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 23
year: '2015'
...
---
_id: '1789'
abstract:
- lang: eng
text: Intellectual disability (ID) has an estimated prevalence of 2-3%. Due to its
extreme heterogeneity, the genetic basis of ID remains elusive in many cases.
Recently, whole exome sequencing (WES) studies revealed that a large proportion
of sporadic cases are caused by de novo gene variants. To identify further genes
involved in ID, we performed WES in 250 patients with unexplained ID and their
unaffected parents and included exomes of 51 previously sequenced child-parents
trios in the analysis. Exome analysis revealed de novo intragenic variants in
SET domain-containing 5 (SETD5) in two patients. One patient carried a nonsense
variant, and the other an 81 bp deletion located across a splice-donor site. Chromosomal
microarray diagnostics further identified four de novo non-recurrent microdeletions
encompassing SETD5. CRISPR/Cas9 mutation modelling of the two intragenic variants
demonstrated nonsense-mediated decay of the resulting transcripts, pointing to
a loss-of-function (LoF) and haploinsufficiency as the common disease-causing
mechanism of intragenic SETD5 sequence variants and SETD5-containing microdeletions.
In silico domain prediction of SETD5, a predicted SET domain-containing histone
methyltransferase (HMT), substantiated the presence of a SET domain and identified
a novel putative PHD domain, strengthening a functional link to well-known histone-modifying
ID genes. All six patients presented with ID and certain facial dysmorphisms,
suggesting that SETD5 sequence variants contribute substantially to the microdeletion
3p25.3 phenotype. The present report of two SETD5 LoF variants in 301 patients
demonstrates a prevalence of 0.7% and thus SETD5 variants as a relatively frequent
cause of ID.
article_processing_charge: No
author:
- first_name: Alma
full_name: Kuechler, Alma
last_name: Kuechler
- first_name: Alexander
full_name: Zink, Alexander
last_name: Zink
- first_name: Thomas
full_name: Wieland, Thomas
last_name: Wieland
- first_name: Hermann
full_name: Lüdecke, Hermann
last_name: Lüdecke
- first_name: Kirsten
full_name: Cremer, Kirsten
last_name: Cremer
- first_name: Leonardo
full_name: Salviati, Leonardo
last_name: Salviati
- first_name: Pamela
full_name: Magini, Pamela
last_name: Magini
- first_name: Kimia
full_name: Najafi, Kimia
last_name: Najafi
- first_name: Christiane
full_name: Zweier, Christiane
last_name: Zweier
- first_name: Johanna
full_name: Czeschik, Johanna
last_name: Czeschik
- first_name: Stefan
full_name: Aretz, Stefan
last_name: Aretz
- first_name: Sabine
full_name: Endele, Sabine
last_name: Endele
- first_name: Federica
full_name: Tamburrino, Federica
last_name: Tamburrino
- first_name: Claudia
full_name: Pinato, Claudia
last_name: Pinato
- first_name: Maurizio
full_name: Clementi, Maurizio
last_name: Clementi
- first_name: Jasmin
full_name: Gundlach, Jasmin
last_name: Gundlach
- first_name: Carina
full_name: Maylahn, Carina
last_name: Maylahn
- first_name: Laura
full_name: Mazzanti, Laura
last_name: Mazzanti
- first_name: Eva
full_name: Wohlleber, Eva
last_name: Wohlleber
- first_name: Thomas
full_name: Schwarzmayr, Thomas
last_name: Schwarzmayr
- first_name: Roxana
full_name: Kariminejad, Roxana
last_name: Kariminejad
- first_name: Avner
full_name: Schlessinger, Avner
last_name: Schlessinger
- first_name: Dagmar
full_name: Wieczorek, Dagmar
last_name: Wieczorek
- first_name: Tim
full_name: Strom, Tim
last_name: Strom
- first_name: Gaia
full_name: Novarino, Gaia
id: 3E57A680-F248-11E8-B48F-1D18A9856A87
last_name: Novarino
orcid: 0000-0002-7673-7178
- first_name: Hartmut
full_name: Engels, Hartmut
last_name: Engels
citation:
ama: Kuechler A, Zink A, Wieland T, et al. Loss-of-function variants of SETD5 cause
intellectual disability and the core phenotype of microdeletion 3p25.3 syndrome.
European Journal of Human Genetics. 2015;23(6):753-760. doi:10.1038/ejhg.2014.165
apa: Kuechler, A., Zink, A., Wieland, T., Lüdecke, H., Cremer, K., Salviati, L.,
… Engels, H. (2015). Loss-of-function variants of SETD5 cause intellectual disability
and the core phenotype of microdeletion 3p25.3 syndrome. European Journal of
Human Genetics. Nature Publishing Group. https://doi.org/10.1038/ejhg.2014.165
chicago: Kuechler, Alma, Alexander Zink, Thomas Wieland, Hermann Lüdecke, Kirsten
Cremer, Leonardo Salviati, Pamela Magini, et al. “Loss-of-Function Variants of
SETD5 Cause Intellectual Disability and the Core Phenotype of Microdeletion 3p25.3
Syndrome.” European Journal of Human Genetics. Nature Publishing Group,
2015. https://doi.org/10.1038/ejhg.2014.165.
ieee: A. Kuechler et al., “Loss-of-function variants of SETD5 cause intellectual
disability and the core phenotype of microdeletion 3p25.3 syndrome,” European
Journal of Human Genetics, vol. 23, no. 6. Nature Publishing Group, pp. 753–760,
2015.
ista: Kuechler A, Zink A, Wieland T, Lüdecke H, Cremer K, Salviati L, Magini P,
Najafi K, Zweier C, Czeschik J, Aretz S, Endele S, Tamburrino F, Pinato C, Clementi
M, Gundlach J, Maylahn C, Mazzanti L, Wohlleber E, Schwarzmayr T, Kariminejad
R, Schlessinger A, Wieczorek D, Strom T, Novarino G, Engels H. 2015. Loss-of-function
variants of SETD5 cause intellectual disability and the core phenotype of microdeletion
3p25.3 syndrome. European Journal of Human Genetics. 23(6), 753–760.
mla: Kuechler, Alma, et al. “Loss-of-Function Variants of SETD5 Cause Intellectual
Disability and the Core Phenotype of Microdeletion 3p25.3 Syndrome.” European
Journal of Human Genetics, vol. 23, no. 6, Nature Publishing Group, 2015,
pp. 753–60, doi:10.1038/ejhg.2014.165.
short: A. Kuechler, A. Zink, T. Wieland, H. Lüdecke, K. Cremer, L. Salviati, P.
Magini, K. Najafi, C. Zweier, J. Czeschik, S. Aretz, S. Endele, F. Tamburrino,
C. Pinato, M. Clementi, J. Gundlach, C. Maylahn, L. Mazzanti, E. Wohlleber, T.
Schwarzmayr, R. Kariminejad, A. Schlessinger, D. Wieczorek, T. Strom, G. Novarino,
H. Engels, European Journal of Human Genetics 23 (2015) 753–760.
date_created: 2018-12-11T11:54:01Z
date_published: 2015-06-15T00:00:00Z
date_updated: 2025-09-23T09:30:27Z
day: '15'
department:
- _id: GaNo
doi: 10.1038/ejhg.2014.165
external_id:
isi:
- '000354474600013'
pmid:
- '25138099'
intvolume: ' 23'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4795044/
month: '06'
oa: 1
oa_version: Submitted Version
page: 753 - 760
pmid: 1
publication: European Journal of Human Genetics
publication_status: published
publisher: Nature Publishing Group
publist_id: '5324'
quality_controlled: '1'
status: public
title: Loss-of-function variants of SETD5 cause intellectual disability and the core
phenotype of microdeletion 3p25.3 syndrome
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 23
year: '2015'
...
---
_id: '1792'
abstract:
- lang: eng
text: Motivated by recent ideas of Harman (Unif. Distrib. Theory, 2010) we develop
a new concept of variation of multivariate functions on a compact Hausdorff space
with respect to a collection D of subsets. We prove a general version of the Koksma-Hlawka
theorem that holds for this notion of variation and discrepancy with respect to
D. As special cases, we obtain Koksma-Hlawka inequalities for classical notions,
such as extreme or isotropic discrepancy. For extreme discrepancy, our result
coincides with the usual Koksma-Hlawka theorem. We show that the space of functions
of bounded D-variation contains important discontinuous functions and is closed
under natural algebraic operations. Finally, we illustrate the results on concrete
integration problems from integral geometry and stereology.
acknowledgement: F.P. is supported by the Graduate School of IST Austria, A.M.S is
supported by the Centre for Stochastic Geometry and Advanced Bioimaging funded by
a grant from the Villum Foundation.
article_processing_charge: No
author:
- first_name: Florian
full_name: Pausinger, Florian
id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
last_name: Pausinger
orcid: 0000-0002-8379-3768
- first_name: Anne
full_name: Svane, Anne
last_name: Svane
citation:
ama: Pausinger F, Svane A. A Koksma-Hlawka inequality for general discrepancy systems.
Journal of Complexity. 2015;31(6):773-797. doi:10.1016/j.jco.2015.06.002
apa: Pausinger, F., & Svane, A. (2015). A Koksma-Hlawka inequality for general
discrepancy systems. Journal of Complexity. Academic Press. https://doi.org/10.1016/j.jco.2015.06.002
chicago: Pausinger, Florian, and Anne Svane. “A Koksma-Hlawka Inequality for General
Discrepancy Systems.” Journal of Complexity. Academic Press, 2015. https://doi.org/10.1016/j.jco.2015.06.002.
ieee: F. Pausinger and A. Svane, “A Koksma-Hlawka inequality for general discrepancy
systems,” Journal of Complexity, vol. 31, no. 6. Academic Press, pp. 773–797,
2015.
ista: Pausinger F, Svane A. 2015. A Koksma-Hlawka inequality for general discrepancy
systems. Journal of Complexity. 31(6), 773–797.
mla: Pausinger, Florian, and Anne Svane. “A Koksma-Hlawka Inequality for General
Discrepancy Systems.” Journal of Complexity, vol. 31, no. 6, Academic Press,
2015, pp. 773–97, doi:10.1016/j.jco.2015.06.002.
short: F. Pausinger, A. Svane, Journal of Complexity 31 (2015) 773–797.
corr_author: '1'
date_created: 2018-12-11T11:54:02Z
date_published: 2015-12-01T00:00:00Z
date_updated: 2026-04-09T14:26:05Z
day: '01'
department:
- _id: HeEd
doi: 10.1016/j.jco.2015.06.002
external_id:
isi:
- '000362926900001'
intvolume: ' 31'
isi: 1
issue: '6'
language:
- iso: eng
month: '12'
oa_version: None
page: 773 - 797
publication: Journal of Complexity
publication_status: published
publisher: Academic Press
publist_id: '5320'
quality_controlled: '1'
related_material:
record:
- id: '1399'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: A Koksma-Hlawka inequality for general discrepancy systems
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 31
year: '2015'
...
---
_id: '1793'
abstract:
- lang: eng
text: We present a software platform for reconstructing and analyzing the growth
of a plant root system from a time-series of 3D voxelized shapes. It aligns the
shapes with each other, constructs a geometric graph representation together with
the function that records the time of growth, and organizes the branches into
a hierarchy that reflects the order of creation. The software includes the automatic
computation of structural and dynamic traits for each root in the system enabling
the quantification of growth on fine-scale. These are important advances in plant
phenotyping with applications to the study of genetic and environmental influences
on growth.
article_number: e0127657
article_processing_charge: No
author:
- first_name: Olga
full_name: Symonova, Olga
id: 3C0C7BC6-F248-11E8-B48F-1D18A9856A87
last_name: Symonova
orcid: 0000-0003-2012-9947
- first_name: Christopher
full_name: Topp, Christopher
last_name: Topp
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
citation:
ama: 'Symonova O, Topp C, Edelsbrunner H. DynamicRoots: A software platform for
the reconstruction and analysis of growing plant roots. PLoS One. 2015;10(6).
doi:10.1371/journal.pone.0127657'
apa: 'Symonova, O., Topp, C., & Edelsbrunner, H. (2015). DynamicRoots: A software
platform for the reconstruction and analysis of growing plant roots. PLoS One.
Public Library of Science. https://doi.org/10.1371/journal.pone.0127657'
chicago: 'Symonova, Olga, Christopher Topp, and Herbert Edelsbrunner. “DynamicRoots:
A Software Platform for the Reconstruction and Analysis of Growing Plant Roots.”
PLoS One. Public Library of Science, 2015. https://doi.org/10.1371/journal.pone.0127657.'
ieee: 'O. Symonova, C. Topp, and H. Edelsbrunner, “DynamicRoots: A software platform
for the reconstruction and analysis of growing plant roots,” PLoS One,
vol. 10, no. 6. Public Library of Science, 2015.'
ista: 'Symonova O, Topp C, Edelsbrunner H. 2015. DynamicRoots: A software platform
for the reconstruction and analysis of growing plant roots. PLoS One. 10(6), e0127657.'
mla: 'Symonova, Olga, et al. “DynamicRoots: A Software Platform for the Reconstruction
and Analysis of Growing Plant Roots.” PLoS One, vol. 10, no. 6, e0127657,
Public Library of Science, 2015, doi:10.1371/journal.pone.0127657.'
short: O. Symonova, C. Topp, H. Edelsbrunner, PLoS One 10 (2015).
corr_author: '1'
date_created: 2018-12-11T11:54:02Z
date_published: 2015-06-01T00:00:00Z
date_updated: 2025-09-23T08:30:43Z
day: '01'
ddc:
- '000'
department:
- _id: MaJö
- _id: HeEd
doi: 10.1371/journal.pone.0127657
external_id:
isi:
- '000356630900069'
file:
- access_level: open_access
checksum: d20f26461ca575276ad3ed9ce4bfc787
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:30Z
date_updated: 2020-07-14T12:45:16Z
file_id: '5150'
file_name: IST-2016-454-v1+1_journal.pone.0127657.pdf
file_size: 1850825
relation: main_file
file_date_updated: 2020-07-14T12:45:16Z
has_accepted_license: '1'
intvolume: ' 10'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '5318'
pubrep_id: '454'
quality_controlled: '1'
related_material:
record:
- id: '9737'
relation: research_data
status: public
scopus_import: '1'
status: public
title: 'DynamicRoots: A software platform for the reconstruction and analysis of growing
plant roots'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 10
year: '2015'
...
---
_id: '17965'
abstract:
- lang: eng
text: 'We investigate bidirectional femtosecond charge transfer dynamics using the
core–hole clock implementation of resonant photoemission spectroscopy from 4,4′-bipyridine
molecular layers on three different surfaces: Au(111), epitaxial graphene on Ni(111),
and graphene nanoribbons. We show that the lowest unoccupied molecular orbital
(LUMO) of the molecule drops partially below the Fermi level upon core–hole creation
in all systems, opening an additional decay channel for the core–hole, involving
electron donation from substrate to the molecule. Furthermore, using the core–hole
clock method, we find that the bidirectional charge transfer time between the
substrate and the molecule is fastest on Au(111), with a 2 fs time, then around
4 fs for epitaxial graphene and slowest with graphene nanoribbon surface, taking
around 10 fs. Finally, we provide evidence for fast phase decoherence of the core-excited
LUMO* electron through an interaction with the substrate providing the first observation
of such a fast bidirectional charge transfer across an organic/graphene interface.'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Olgun
full_name: Adak, Olgun
last_name: Adak
- first_name: Gregor
full_name: Kladnik, Gregor
last_name: Kladnik
- first_name: Gregor
full_name: Bavdek, Gregor
last_name: Bavdek
- first_name: Albano
full_name: Cossaro, Albano
last_name: Cossaro
- first_name: Alberto
full_name: Morgante, Alberto
last_name: Morgante
- first_name: Dean
full_name: Cvetko, Dean
last_name: Cvetko
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: 'Adak O, Kladnik G, Bavdek G, et al. Ultrafast bidirectional charge transport
and electron decoherence at molecule/surface interfaces: A comparison of gold,
graphene, and graphene nanoribbon surfaces. Nano Letters. 2015;15(12):8316-8321.
doi:10.1021/acs.nanolett.5b03962'
apa: 'Adak, O., Kladnik, G., Bavdek, G., Cossaro, A., Morgante, A., Cvetko, D.,
& Venkataraman, L. (2015). Ultrafast bidirectional charge transport and electron
decoherence at molecule/surface interfaces: A comparison of gold, graphene, and
graphene nanoribbon surfaces. Nano Letters. American Chemical Society.
https://doi.org/10.1021/acs.nanolett.5b03962'
chicago: 'Adak, Olgun, Gregor Kladnik, Gregor Bavdek, Albano Cossaro, Alberto Morgante,
Dean Cvetko, and Latha Venkataraman. “Ultrafast Bidirectional Charge Transport
and Electron Decoherence at Molecule/Surface Interfaces: A Comparison of Gold,
Graphene, and Graphene Nanoribbon Surfaces.” Nano Letters. American Chemical
Society, 2015. https://doi.org/10.1021/acs.nanolett.5b03962.'
ieee: 'O. Adak et al., “Ultrafast bidirectional charge transport and electron
decoherence at molecule/surface interfaces: A comparison of gold, graphene, and
graphene nanoribbon surfaces,” Nano Letters, vol. 15, no. 12. American
Chemical Society, pp. 8316–8321, 2015.'
ista: 'Adak O, Kladnik G, Bavdek G, Cossaro A, Morgante A, Cvetko D, Venkataraman
L. 2015. Ultrafast bidirectional charge transport and electron decoherence at
molecule/surface interfaces: A comparison of gold, graphene, and graphene nanoribbon
surfaces. Nano Letters. 15(12), 8316–8321.'
mla: 'Adak, Olgun, et al. “Ultrafast Bidirectional Charge Transport and Electron
Decoherence at Molecule/Surface Interfaces: A Comparison of Gold, Graphene, and
Graphene Nanoribbon Surfaces.” Nano Letters, vol. 15, no. 12, American
Chemical Society, 2015, pp. 8316–21, doi:10.1021/acs.nanolett.5b03962.'
short: O. Adak, G. Kladnik, G. Bavdek, A. Cossaro, A. Morgante, D. Cvetko, L. Venkataraman,
Nano Letters 15 (2015) 8316–8321.
date_created: 2024-09-09T09:40:21Z
date_published: 2015-11-17T00:00:00Z
date_updated: 2024-12-18T10:22:39Z
day: '17'
doi: 10.1021/acs.nanolett.5b03962
extern: '1'
external_id:
pmid:
- '26574713'
intvolume: ' 15'
issue: '12'
language:
- iso: eng
month: '11'
oa_version: None
page: 8316-8321
pmid: 1
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Ultrafast bidirectional charge transport and electron decoherence at molecule/surface
interfaces: A comparison of gold, graphene, and graphene nanoribbon surfaces'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
OA_type: closed access
_id: '17966'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Mikkel
full_name: Strange, Mikkel
last_name: Strange
- first_name: Gemma C.
full_name: Solomon, Gemma C.
last_name: Solomon
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: Luis M.
full_name: Campos, Luis M.
last_name: Campos
citation:
ama: Strange M, Solomon GC, Venkataraman L, Campos LM. Reply to “Comment on ‘Breakdown
of Interference Rules in Azulene, a Nonalternant Hydrocarbon.’” Nano Letters.
2015;15(11):7177-7178. doi:10.1021/acs.nanolett.5b04154
apa: Strange, M., Solomon, G. C., Venkataraman, L., & Campos, L. M. (2015).
Reply to “Comment on ‘Breakdown of Interference Rules in Azulene, a Nonalternant
Hydrocarbon.’” Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.5b04154
chicago: Strange, Mikkel, Gemma C. Solomon, Latha Venkataraman, and Luis M. Campos.
“Reply to ‘Comment on “Breakdown of Interference Rules in Azulene, a Nonalternant
Hydrocarbon.”’” Nano Letters. American Chemical Society, 2015. https://doi.org/10.1021/acs.nanolett.5b04154.
ieee: M. Strange, G. C. Solomon, L. Venkataraman, and L. M. Campos, “Reply to ‘Comment
on “Breakdown of Interference Rules in Azulene, a Nonalternant Hydrocarbon,”’”
Nano Letters, vol. 15, no. 11. American Chemical Society, pp. 7177–7178,
2015.
ista: Strange M, Solomon GC, Venkataraman L, Campos LM. 2015. Reply to “Comment
on ‘Breakdown of Interference Rules in Azulene, a Nonalternant Hydrocarbon’”.
Nano Letters. 15(11), 7177–7178.
mla: Strange, Mikkel, et al. “Reply to ‘Comment on “Breakdown of Interference Rules
in Azulene, a Nonalternant Hydrocarbon.”’” Nano Letters, vol. 15, no. 11,
American Chemical Society, 2015, pp. 7177–78, doi:10.1021/acs.nanolett.5b04154.
short: M. Strange, G.C. Solomon, L. Venkataraman, L.M. Campos, Nano Letters 15 (2015)
7177–7178.
date_created: 2024-09-09T09:41:17Z
date_published: 2015-10-20T00:00:00Z
date_updated: 2024-12-18T10:28:04Z
day: '20'
doi: 10.1021/acs.nanolett.5b04154
extern: '1'
external_id:
pmid:
- '24745894'
intvolume: ' 15'
issue: '11'
language:
- iso: eng
month: '10'
oa_version: None
page: 7177-7178
pmid: 1
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Reply to “Comment on ‘Breakdown of Interference Rules in Azulene, a Nonalternant
Hydrocarbon’”
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
OA_type: closed access
_id: '17967'
abstract:
- lang: eng
text: We report a systematic computational search of molecular frameworks for intrinsic
rectification of electron transport. The screening of molecular rectifiers includes
52 molecules and conformers spanning over 9 series of structural motifs. N-Phenylbenzamide
is found to be a promising framework with both suitable conductance and rectification
properties. A targeted screening performed on 30 additional derivatives and conformers
of N-phenylbenzamide yielded enhanced rectification based on asymmetric functionalization.
We demonstrate that electron-donating substituent groups that maintain an asymmetric
distribution of charge in the dominant transport channel (e.g., HOMO) enhance
rectification by raising the channel closer to the Fermi level. These findings
are particularly valuable for the design of molecular assemblies that could ensure
directionality of electron transport in a wide range of applications, from molecular
electronics to catalytic reactions.
article_processing_charge: No
article_type: original
author:
- first_name: Wendu
full_name: Ding, Wendu
last_name: Ding
- first_name: Matthieu
full_name: Koepf, Matthieu
last_name: Koepf
- first_name: Christopher
full_name: Koenigsmann, Christopher
last_name: Koenigsmann
- first_name: Arunabh
full_name: Batra, Arunabh
last_name: Batra
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: Christian F. A.
full_name: Negre, Christian F. A.
last_name: Negre
- first_name: Gary W.
full_name: Brudvig, Gary W.
last_name: Brudvig
- first_name: Robert H.
full_name: Crabtree, Robert H.
last_name: Crabtree
- first_name: Charles A.
full_name: Schmuttenmaer, Charles A.
last_name: Schmuttenmaer
- first_name: Victor S.
full_name: Batista, Victor S.
last_name: Batista
citation:
ama: Ding W, Koepf M, Koenigsmann C, et al. Computational design of intrinsic molecular
rectifiers based on asymmetric functionalization of N-Phenylbenzamide. Journal
of Chemical Theory and Computation. 2015;11(12):5888-5896. doi:10.1021/acs.jctc.5b00823
apa: Ding, W., Koepf, M., Koenigsmann, C., Batra, A., Venkataraman, L., Negre, C.
F. A., … Batista, V. S. (2015). Computational design of intrinsic molecular rectifiers
based on asymmetric functionalization of N-Phenylbenzamide. Journal of Chemical
Theory and Computation. American Chemical Society. https://doi.org/10.1021/acs.jctc.5b00823
chicago: Ding, Wendu, Matthieu Koepf, Christopher Koenigsmann, Arunabh Batra, Latha
Venkataraman, Christian F. A. Negre, Gary W. Brudvig, Robert H. Crabtree, Charles
A. Schmuttenmaer, and Victor S. Batista. “Computational Design of Intrinsic Molecular
Rectifiers Based on Asymmetric Functionalization of N-Phenylbenzamide.” Journal
of Chemical Theory and Computation. American Chemical Society, 2015. https://doi.org/10.1021/acs.jctc.5b00823.
ieee: W. Ding et al., “Computational design of intrinsic molecular rectifiers
based on asymmetric functionalization of N-Phenylbenzamide,” Journal of Chemical
Theory and Computation, vol. 11, no. 12. American Chemical Society, pp. 5888–5896,
2015.
ista: Ding W, Koepf M, Koenigsmann C, Batra A, Venkataraman L, Negre CFA, Brudvig
GW, Crabtree RH, Schmuttenmaer CA, Batista VS. 2015. Computational design of intrinsic
molecular rectifiers based on asymmetric functionalization of N-Phenylbenzamide.
Journal of Chemical Theory and Computation. 11(12), 5888–5896.
mla: Ding, Wendu, et al. “Computational Design of Intrinsic Molecular Rectifiers
Based on Asymmetric Functionalization of N-Phenylbenzamide.” Journal of Chemical
Theory and Computation, vol. 11, no. 12, American Chemical Society, 2015,
pp. 5888–96, doi:10.1021/acs.jctc.5b00823.
short: W. Ding, M. Koepf, C. Koenigsmann, A. Batra, L. Venkataraman, C.F.A. Negre,
G.W. Brudvig, R.H. Crabtree, C.A. Schmuttenmaer, V.S. Batista, Journal of Chemical
Theory and Computation 11 (2015) 5888–5896.
date_created: 2024-09-09T09:42:20Z
date_published: 2015-11-03T00:00:00Z
date_updated: 2024-12-18T10:33:40Z
day: '03'
doi: 10.1021/acs.jctc.5b00823
extern: '1'
external_id:
pmid:
- '26642992'
intvolume: ' 11'
issue: '12'
language:
- iso: eng
month: '11'
oa_version: None
page: 5888-5896
pmid: 1
publication: Journal of Chemical Theory and Computation
publication_identifier:
eissn:
- 1549-9626
issn:
- 1549-9618
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Computational design of intrinsic molecular rectifiers based on asymmetric
functionalization of N-Phenylbenzamide
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2015'
...
---
OA_type: closed access
_id: '17968'
abstract:
- lang: eng
text: While the electrical conductivity of bulk-scale group 14 materials such as
diamond carbon, silicon, and germanium is well understood, there is a gap in knowledge
regarding the conductivity of these materials at the nano and molecular scales.
Filling this gap is important because integrated circuits have shrunk so far that
their active regions, which rely so heavily on silicon and germanium, begin to
resemble ornate molecules rather than extended solids. Here we unveil a new approach
for synthesizing atomically discrete wires of germanium and present the first
conductance measurements of molecular germanium using a scanning tunneling microscope-based
break-junction (STM-BJ) technique. Our findings show that germanium and silicon
wires are nearly identical in conductivity at the molecular scale, and that both
are much more conductive than aliphatic carbon. We demonstrate that the strong
donor ability of C–Ge σ-bonds can be used to raise the energy of the anchor lone
pair and increase conductance. Furthermore, the oligogermane wires behave as conductance
switches that function through stereoelectronic logic. These devices can be trained
to operate with a higher switching factor by repeatedly compressing and elongating
the molecular junction.
article_processing_charge: No
article_type: original
author:
- first_name: Timothy A.
full_name: Su, Timothy A.
last_name: Su
- first_name: Haixing
full_name: Li, Haixing
last_name: Li
- first_name: Vivian
full_name: Zhang, Vivian
last_name: Zhang
- first_name: Madhav
full_name: Neupane, Madhav
last_name: Neupane
- first_name: Arunabh
full_name: Batra, Arunabh
last_name: Batra
- first_name: Rebekka S.
full_name: Klausen, Rebekka S.
last_name: Klausen
- first_name: Bharat
full_name: Kumar, Bharat
last_name: Kumar
- first_name: Michael L.
full_name: Steigerwald, Michael L.
last_name: Steigerwald
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
citation:
ama: Su TA, Li H, Zhang V, et al. Single-molecule conductance in atomically precise
Germanium wires. Journal of the American Chemical Society. 2015;137(38):12400-12405.
doi:10.1021/jacs.5b08155
apa: Su, T. A., Li, H., Zhang, V., Neupane, M., Batra, A., Klausen, R. S., … Nuckolls,
C. (2015). Single-molecule conductance in atomically precise Germanium wires.
Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/jacs.5b08155
chicago: Su, Timothy A., Haixing Li, Vivian Zhang, Madhav Neupane, Arunabh Batra,
Rebekka S. Klausen, Bharat Kumar, Michael L. Steigerwald, Latha Venkataraman,
and Colin Nuckolls. “Single-Molecule Conductance in Atomically Precise Germanium
Wires.” Journal of the American Chemical Society. American Chemical Society,
2015. https://doi.org/10.1021/jacs.5b08155.
ieee: T. A. Su et al., “Single-molecule conductance in atomically precise
Germanium wires,” Journal of the American Chemical Society, vol. 137, no.
38. American Chemical Society, pp. 12400–12405, 2015.
ista: Su TA, Li H, Zhang V, Neupane M, Batra A, Klausen RS, Kumar B, Steigerwald
ML, Venkataraman L, Nuckolls C. 2015. Single-molecule conductance in atomically
precise Germanium wires. Journal of the American Chemical Society. 137(38), 12400–12405.
mla: Su, Timothy A., et al. “Single-Molecule Conductance in Atomically Precise Germanium
Wires.” Journal of the American Chemical Society, vol. 137, no. 38, American
Chemical Society, 2015, pp. 12400–05, doi:10.1021/jacs.5b08155.
short: T.A. Su, H. Li, V. Zhang, M. Neupane, A. Batra, R.S. Klausen, B. Kumar, M.L.
Steigerwald, L. Venkataraman, C. Nuckolls, Journal of the American Chemical Society
137 (2015) 12400–12405.
date_created: 2024-09-09T09:43:25Z
date_published: 2015-09-16T00:00:00Z
date_updated: 2024-12-18T11:24:37Z
day: '16'
doi: 10.1021/jacs.5b08155
extern: '1'
external_id:
pmid:
- '26373928'
intvolume: ' 137'
issue: '38'
language:
- iso: eng
month: '09'
oa_version: None
page: 12400-12405
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
eissn:
- 1520-5126
issn:
- 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single-molecule conductance in atomically precise Germanium wires
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 137
year: '2015'
...
---
OA_place: repository
OA_type: green
_id: '17969'
abstract:
- lang: eng
text: Recent experiments have shown that transport properties of molecular-scale
devices can be reversibly altered by the surrounding solvent. Here, we use a combination
of first-principles calculations and experiment to explain this change in transport
properties through a shift in the local electrostatic potential at the junction
caused by nearby conducting and solvent molecules chemically bound to the electrodes.
This effect is found to alter the conductance of 4,4′-bipyridine-gold junctions
by more than 50%. Moreover, we develop a general electrostatic model that quantitatively
relates the conductance and dipoles associated with the bound solvent and conducting
molecules. Our work shows that solvent-induced effects can be used to control
charge and energy transport at molecular-scale interfaces.
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Michele
full_name: Kotiuga, Michele
last_name: Kotiuga
- first_name: Pierre
full_name: Darancet, Pierre
last_name: Darancet
- first_name: Carlos R.
full_name: Arroyo, Carlos R.
last_name: Arroyo
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: Jeffrey B.
full_name: Neaton, Jeffrey B.
last_name: Neaton
citation:
ama: Kotiuga M, Darancet P, Arroyo CR, Venkataraman L, Neaton JB. Adsorption-induced
solvent-based electrostatic gating of charge transport through molecular junctions.
Nano Letters. 2015;15(7):4498-4503. doi:10.1021/acs.nanolett.5b00990
apa: Kotiuga, M., Darancet, P., Arroyo, C. R., Venkataraman, L., & Neaton, J.
B. (2015). Adsorption-induced solvent-based electrostatic gating of charge transport
through molecular junctions. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.5b00990
chicago: Kotiuga, Michele, Pierre Darancet, Carlos R. Arroyo, Latha Venkataraman,
and Jeffrey B. Neaton. “Adsorption-Induced Solvent-Based Electrostatic Gating
of Charge Transport through Molecular Junctions.” Nano Letters. American
Chemical Society, 2015. https://doi.org/10.1021/acs.nanolett.5b00990.
ieee: M. Kotiuga, P. Darancet, C. R. Arroyo, L. Venkataraman, and J. B. Neaton,
“Adsorption-induced solvent-based electrostatic gating of charge transport through
molecular junctions,” Nano Letters, vol. 15, no. 7. American Chemical Society,
pp. 4498–4503, 2015.
ista: Kotiuga M, Darancet P, Arroyo CR, Venkataraman L, Neaton JB. 2015. Adsorption-induced
solvent-based electrostatic gating of charge transport through molecular junctions.
Nano Letters. 15(7), 4498–4503.
mla: Kotiuga, Michele, et al. “Adsorption-Induced Solvent-Based Electrostatic Gating
of Charge Transport through Molecular Junctions.” Nano Letters, vol. 15,
no. 7, American Chemical Society, 2015, pp. 4498–503, doi:10.1021/acs.nanolett.5b00990.
short: M. Kotiuga, P. Darancet, C.R. Arroyo, L. Venkataraman, J.B. Neaton, Nano
Letters 15 (2015) 4498–4503.
date_created: 2024-09-09T09:44:13Z
date_published: 2015-06-12T00:00:00Z
date_updated: 2024-12-18T11:28:49Z
day: '12'
doi: 10.1021/acs.nanolett.5b00990
extern: '1'
external_id:
arxiv:
- '1410.1439'
intvolume: ' 15'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1410.1439
month: '06'
oa: 1
oa_version: Preprint
page: 4498-4503
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Adsorption-induced solvent-based electrostatic gating of charge transport through
molecular junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
OA_type: closed access
_id: '17970'
abstract:
- lang: eng
text: Charge transport properties of metal–molecule interfaces depend strongly on
the character of molecule–electrode interactions. Although through-bond coupled
systems have attracted the most attention, through-space coupling is important
in molecular systems when, for example, through-bond coupling is suppressed due
to quantum interference effects. To date, a probe that clearly distinguishes these
two types of coupling has not yet been demonstrated. Here, we investigate the
origin of flicker noise in single molecule junctions and demonstrate how the character
of the molecule–electrode coupling influences the flicker noise behavior of single
molecule junctions. Importantly, we find that flicker noise shows a power law
dependence on conductance in all junctions studied with an exponent that can distinguish
through-space and through-bond coupling. Our results provide a new and powerful
tool for probing and understanding coupling at the metal-molecule interface.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Olgun
full_name: Adak, Olgun
last_name: Adak
- first_name: Ethan
full_name: Rosenthal, Ethan
last_name: Rosenthal
- first_name: Jeffery
full_name: Meisner, Jeffery
last_name: Meisner
- first_name: Erick F.
full_name: Andrade, Erick F.
last_name: Andrade
- first_name: Abhay N.
full_name: Pasupathy, Abhay N.
last_name: Pasupathy
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Mark S.
full_name: Hybertsen, Mark S.
last_name: Hybertsen
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Adak O, Rosenthal E, Meisner J, et al. Flicker noise as a probe of electronic
interaction at metal–single molecule interfaces. Nano Letters. 2015;15(6):4143-4149.
doi:10.1021/acs.nanolett.5b01270
apa: Adak, O., Rosenthal, E., Meisner, J., Andrade, E. F., Pasupathy, A. N., Nuckolls,
C., … Venkataraman, L. (2015). Flicker noise as a probe of electronic interaction
at metal–single molecule interfaces. Nano Letters. American Chemical Society.
https://doi.org/10.1021/acs.nanolett.5b01270
chicago: Adak, Olgun, Ethan Rosenthal, Jeffery Meisner, Erick F. Andrade, Abhay
N. Pasupathy, Colin Nuckolls, Mark S. Hybertsen, and Latha Venkataraman. “Flicker
Noise as a Probe of Electronic Interaction at Metal–Single Molecule Interfaces.”
Nano Letters. American Chemical Society, 2015. https://doi.org/10.1021/acs.nanolett.5b01270.
ieee: O. Adak et al., “Flicker noise as a probe of electronic interaction
at metal–single molecule interfaces,” Nano Letters, vol. 15, no. 6. American
Chemical Society, pp. 4143–4149, 2015.
ista: Adak O, Rosenthal E, Meisner J, Andrade EF, Pasupathy AN, Nuckolls C, Hybertsen
MS, Venkataraman L. 2015. Flicker noise as a probe of electronic interaction at
metal–single molecule interfaces. Nano Letters. 15(6), 4143–4149.
mla: Adak, Olgun, et al. “Flicker Noise as a Probe of Electronic Interaction at
Metal–Single Molecule Interfaces.” Nano Letters, vol. 15, no. 6, American
Chemical Society, 2015, pp. 4143–49, doi:10.1021/acs.nanolett.5b01270.
short: O. Adak, E. Rosenthal, J. Meisner, E.F. Andrade, A.N. Pasupathy, C. Nuckolls,
M.S. Hybertsen, L. Venkataraman, Nano Letters 15 (2015) 4143–4149.
date_created: 2024-09-09T09:45:50Z
date_published: 2015-05-05T00:00:00Z
date_updated: 2024-12-18T11:32:55Z
day: '05'
doi: 10.1021/acs.nanolett.5b01270
extern: '1'
external_id:
pmid:
- '25942441'
intvolume: ' 15'
issue: '6'
language:
- iso: eng
month: '05'
oa_version: None
page: 4143-4149
pmid: 1
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Flicker noise as a probe of electronic interaction at metal–single molecule
interfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
OA_place: repository
OA_type: green
_id: '17971'
abstract:
- lang: eng
text: We study the impact of electrode band structure on transport through single-molecule
junctions by measuring the conductance of pyridine-based molecules using Ag and
Au electrodes. Our experiments are carried out using the scanning tunneling microscope
based break-junction technique and are supported by density functional theory
based calculations. We find from both experiments and calculations that the coupling
of the dominant transport orbital to the metal is stronger for Au-based junctions
when compared with Ag-based junctions. We attribute this difference to relativistic
effects, which result in an enhanced density of d-states at the Fermi energy for
Au compared with Ag. We further show that the alignment of the conducting orbital
relative to the Fermi level does not follow the work function difference between
two metals and is different for conjugated and saturated systems. We thus demonstrate
that the details of the molecular level alignment and electronic coupling in metal–organic
interfaces do not follow simple rules but are rather the consequence of subtle
local interactions.
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Olgun
full_name: Adak, Olgun
last_name: Adak
- first_name: Richard
full_name: Korytár, Richard
last_name: Korytár
- first_name: Andrew Y.
full_name: Joe, Andrew Y.
last_name: Joe
- first_name: Ferdinand
full_name: Evers, Ferdinand
last_name: Evers
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Adak O, Korytár R, Joe AY, Evers F, Venkataraman L. Impact of electrode density
of states on transport through pyridine-linked single molecule junctions. Nano
Letters. 2015;15(6):3716-3722. doi:10.1021/acs.nanolett.5b01195
apa: Adak, O., Korytár, R., Joe, A. Y., Evers, F., & Venkataraman, L. (2015).
Impact of electrode density of states on transport through pyridine-linked single
molecule junctions. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.5b01195
chicago: Adak, Olgun, Richard Korytár, Andrew Y. Joe, Ferdinand Evers, and Latha
Venkataraman. “Impact of Electrode Density of States on Transport through Pyridine-Linked
Single Molecule Junctions.” Nano Letters. American Chemical Society, 2015.
https://doi.org/10.1021/acs.nanolett.5b01195.
ieee: O. Adak, R. Korytár, A. Y. Joe, F. Evers, and L. Venkataraman, “Impact of
electrode density of states on transport through pyridine-linked single molecule
junctions,” Nano Letters, vol. 15, no. 6. American Chemical Society, pp.
3716–3722, 2015.
ista: Adak O, Korytár R, Joe AY, Evers F, Venkataraman L. 2015. Impact of electrode
density of states on transport through pyridine-linked single molecule junctions.
Nano Letters. 15(6), 3716–3722.
mla: Adak, Olgun, et al. “Impact of Electrode Density of States on Transport through
Pyridine-Linked Single Molecule Junctions.” Nano Letters, vol. 15, no.
6, American Chemical Society, 2015, pp. 3716–22, doi:10.1021/acs.nanolett.5b01195.
short: O. Adak, R. Korytár, A.Y. Joe, F. Evers, L. Venkataraman, Nano Letters 15
(2015) 3716–3722.
date_created: 2024-09-09T10:02:07Z
date_published: 2015-05-28T00:00:00Z
date_updated: 2024-12-18T11:37:35Z
day: '28'
doi: 10.1021/acs.nanolett.5b01195
extern: '1'
external_id:
arxiv:
- '1504.00242'
intvolume: ' 15'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1504.00242
month: '05'
oa: 1
oa_version: Preprint
page: 3716-3722
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Impact of electrode density of states on transport through pyridine-linked
single molecule junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2015'
...
---
OA_type: closed access
_id: '17972'
abstract:
- lang: eng
text: Molecular electronics aims to miniaturize electronic devices by using subnanometre-scale
active components1,2,3. A single-molecule diode, a circuit element that directs
current flow4, was first proposed more than 40 years ago5 and consisted of an
asymmetric molecule comprising a donor–bridge–acceptor architecture to mimic a
semiconductor p–n junction. Several single-molecule diodes have since been realized
in junctions featuring asymmetric molecular backbones6,7,8, molecule–electrode
linkers9 or electrode materials10. Despite these advances, molecular diodes have
had limited potential for applications due to their low conductance, low rectification
ratios, extreme sensitivity to the junction structure and high operating voltages7,8,9,11,12.
Here, we demonstrate a powerful approach to induce current rectification in symmetric
single-molecule junctions using two electrodes of the same metal, but breaking
symmetry by exposing considerably different electrode areas to an ionic solution.
This allows us to control the junction's electrostatic environment in an asymmetric
fashion by simply changing the bias polarity. With this method, we reliably and
reproducibly achieve rectification ratios in excess of 200 at voltages as low
as 370 mV using a symmetric oligomer of thiophene-1,1-dioxide13,14. By taking
advantage of the changes in the junction environment induced by the presence of
an ionic solution, this method provides a general route for tuning nonlinear nanoscale
device phenomena, which could potentially be applied in systems beyond single-molecule
junctions.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Brian
full_name: Capozzi, Brian
last_name: Capozzi
- first_name: Jianlong
full_name: Xia, Jianlong
last_name: Xia
- first_name: Olgun
full_name: Adak, Olgun
last_name: Adak
- first_name: Emma J.
full_name: Dell, Emma J.
last_name: Dell
- first_name: Zhen-Fei
full_name: Liu, Zhen-Fei
last_name: Liu
- first_name: Jeffrey C.
full_name: Taylor, Jeffrey C.
last_name: Taylor
- first_name: Jeffrey B.
full_name: Neaton, Jeffrey B.
last_name: Neaton
- first_name: Luis M.
full_name: Campos, Luis M.
last_name: Campos
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Capozzi B, Xia J, Adak O, et al. Single-molecule diodes with high rectification
ratios through environmental control. Nature Nanotechnology. 2015;10(6):522-527.
doi:10.1038/nnano.2015.97
apa: Capozzi, B., Xia, J., Adak, O., Dell, E. J., Liu, Z.-F., Taylor, J. C., … Venkataraman,
L. (2015). Single-molecule diodes with high rectification ratios through environmental
control. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/nnano.2015.97
chicago: Capozzi, Brian, Jianlong Xia, Olgun Adak, Emma J. Dell, Zhen-Fei Liu, Jeffrey
C. Taylor, Jeffrey B. Neaton, Luis M. Campos, and Latha Venkataraman. “Single-Molecule
Diodes with High Rectification Ratios through Environmental Control.” Nature
Nanotechnology. Springer Nature, 2015. https://doi.org/10.1038/nnano.2015.97.
ieee: B. Capozzi et al., “Single-molecule diodes with high rectification
ratios through environmental control,” Nature Nanotechnology, vol. 10,
no. 6. Springer Nature, pp. 522–527, 2015.
ista: Capozzi B, Xia J, Adak O, Dell EJ, Liu Z-F, Taylor JC, Neaton JB, Campos LM,
Venkataraman L. 2015. Single-molecule diodes with high rectification ratios through
environmental control. Nature Nanotechnology. 10(6), 522–527.
mla: Capozzi, Brian, et al. “Single-Molecule Diodes with High Rectification Ratios
through Environmental Control.” Nature Nanotechnology, vol. 10, no. 6,
Springer Nature, 2015, pp. 522–27, doi:10.1038/nnano.2015.97.
short: B. Capozzi, J. Xia, O. Adak, E.J. Dell, Z.-F. Liu, J.C. Taylor, J.B. Neaton,
L.M. Campos, L. Venkataraman, Nature Nanotechnology 10 (2015) 522–527.
date_created: 2024-09-09T10:03:23Z
date_published: 2015-06-01T00:00:00Z
date_updated: 2024-12-18T12:03:16Z
day: '01'
doi: 10.1038/nnano.2015.97
extern: '1'
external_id:
pmid:
- '26005998'
intvolume: ' 10'
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 522-527
pmid: 1
publication: Nature Nanotechnology
publication_identifier:
eissn:
- 1748-3395
issn:
- 1748-3387
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single-molecule diodes with high rectification ratios through environmental
control
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2015'
...