---
_id: '9741'
abstract:
- lang: eng
text: In rapidly changing environments, selection history may impact the dynamics
of adaptation. Mutations selected in one environment may result in pleiotropic
fitness trade-offs in subsequent novel environments, slowing the rates of adaptation.
Epistatic interactions between mutations selected in sequential stressful environments
may slow or accelerate subsequent rates of adaptation, depending on the nature
of that interaction. We explored the dynamics of adaptation during sequential
exposure to herbicides with different modes of action in Chlamydomonas reinhardtii.
Evolution of resistance to two of the herbicides was largely independent of selection
history. For carbetamide, previous adaptation to other herbicide modes of action
positively impacted the likelihood of adaptation to this herbicide. Furthermore,
while adaptation to all individual herbicides was associated with pleiotropic
fitness costs in stress-free environments, we observed that accumulation of resistance
mechanisms was accompanied by a reduction in overall fitness costs. We suggest
that antagonistic epistasis may be a driving mechanism that enables populations
to more readily adapt in novel environments. These findings highlight the potential
for sequences of xenobiotics to facilitate the rapid evolution of multiple-drug
and -pesticide resistance, as well as the potential for epistatic interactions
between adaptive mutations to facilitate evolutionary rescue in rapidly changing
environments.
article_processing_charge: No
author:
- first_name: Mato
full_name: Lagator, Mato
id: 345D25EC-F248-11E8-B48F-1D18A9856A87
last_name: Lagator
- first_name: Nick
full_name: Colegrave, Nick
last_name: Colegrave
- first_name: Paul
full_name: Neve, Paul
last_name: Neve
citation:
ama: 'Lagator M, Colegrave N, Neve P. Data from: Selection history and epistatic
interactions impact dynamics of adaptation to novel environmental stresses. 2014.
doi:10.5061/dryad.85dn7'
apa: 'Lagator, M., Colegrave, N., & Neve, P. (2014). Data from: Selection history
and epistatic interactions impact dynamics of adaptation to novel environmental
stresses. Dryad. https://doi.org/10.5061/dryad.85dn7'
chicago: 'Lagator, Mato, Nick Colegrave, and Paul Neve. “Data from: Selection History
and Epistatic Interactions Impact Dynamics of Adaptation to Novel Environmental
Stresses.” Dryad, 2014. https://doi.org/10.5061/dryad.85dn7.'
ieee: 'M. Lagator, N. Colegrave, and P. Neve, “Data from: Selection history and
epistatic interactions impact dynamics of adaptation to novel environmental stresses.”
Dryad, 2014.'
ista: 'Lagator M, Colegrave N, Neve P. 2014. Data from: Selection history and epistatic
interactions impact dynamics of adaptation to novel environmental stresses, Dryad,
10.5061/dryad.85dn7.'
mla: 'Lagator, Mato, et al. Data from: Selection History and Epistatic Interactions
Impact Dynamics of Adaptation to Novel Environmental Stresses. Dryad, 2014,
doi:10.5061/dryad.85dn7.'
short: M. Lagator, N. Colegrave, P. Neve, (2014).
date_created: 2021-07-28T08:48:06Z
date_published: 2014-08-21T00:00:00Z
date_updated: 2025-09-29T11:54:45Z
day: '21'
department:
- _id: CaGu
doi: 10.5061/dryad.85dn7
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.85dn7
month: '08'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2036'
relation: used_in_publication
status: public
status: public
title: 'Data from: Selection history and epistatic interactions impact dynamics of
adaptation to novel environmental stresses'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '9747'
abstract:
- lang: eng
text: Understanding the effects of sex and migration on adaptation to novel environments
remains a key problem in evolutionary biology. Using a single-cell alga Chlamydomonas
reinhardtii, we investigated how sex and migration affected rates of evolutionary
rescue in a sink environment, and subsequent changes in fitness following evolutionary
rescue. We show that sex and migration affect both the rate of evolutionary rescue
and subsequent adaptation. However, their combined effects change as the populations
adapt to a sink habitat. Both sex and migration independently increased rates
of evolutionary rescue, but the effect of sex on subsequent fitness improvements,
following initial rescue, changed with migration, as sex was beneficial in the
absence of migration but constraining adaptation when combined with migration.
These results suggest that sex and migration are beneficial during the initial
stages of adaptation, but can become detrimental as the population adapts to its
environment.
article_processing_charge: No
author:
- first_name: Mato
full_name: Lagator, Mato
id: 345D25EC-F248-11E8-B48F-1D18A9856A87
last_name: Lagator
- first_name: Andrew
full_name: Morgan, Andrew
last_name: Morgan
- first_name: Paul
full_name: Neve, Paul
last_name: Neve
- first_name: Nick
full_name: Colegrave, Nick
last_name: Colegrave
citation:
ama: 'Lagator M, Morgan A, Neve P, Colegrave N. Data from: Role of sex and migration
in adaptation to sink environments. 2014. doi:10.5061/dryad.s42n1'
apa: 'Lagator, M., Morgan, A., Neve, P., & Colegrave, N. (2014). Data from:
Role of sex and migration in adaptation to sink environments. Dryad. https://doi.org/10.5061/dryad.s42n1'
chicago: 'Lagator, Mato, Andrew Morgan, Paul Neve, and Nick Colegrave. “Data from:
Role of Sex and Migration in Adaptation to Sink Environments.” Dryad, 2014. https://doi.org/10.5061/dryad.s42n1.'
ieee: 'M. Lagator, A. Morgan, P. Neve, and N. Colegrave, “Data from: Role of sex
and migration in adaptation to sink environments.” Dryad, 2014.'
ista: 'Lagator M, Morgan A, Neve P, Colegrave N. 2014. Data from: Role of sex and
migration in adaptation to sink environments, Dryad, 10.5061/dryad.s42n1.'
mla: 'Lagator, Mato, et al. Data from: Role of Sex and Migration in Adaptation
to Sink Environments. Dryad, 2014, doi:10.5061/dryad.s42n1.'
short: M. Lagator, A. Morgan, P. Neve, N. Colegrave, (2014).
date_created: 2021-07-28T15:32:55Z
date_published: 2014-04-17T00:00:00Z
date_updated: 2025-09-29T11:46:47Z
day: '17'
department:
- _id: CaGu
doi: 10.5061/dryad.s42n1
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.s42n1
month: '04'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2083'
relation: used_in_publication
status: public
status: public
title: 'Data from: Role of sex and migration in adaptation to sink environments'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '9752'
abstract:
- lang: eng
text: Redundancies and correlations in the responses of sensory neurons may seem
to waste neural resources, but they can also carry cues about structured stimuli
and may help the brain to correct for response errors. To investigate the effect
of stimulus structure on redundancy in retina, we measured simultaneous responses
from populations of retinal ganglion cells presented with natural and artificial
stimuli that varied greatly in correlation structure; these stimuli and recordings
are publicly available online. Responding to spatio-temporally structured stimuli
such as natural movies, pairs of ganglion cells were modestly more correlated
than in response to white noise checkerboards, but they were much less correlated
than predicted by a non-adapting functional model of retinal response. Meanwhile,
responding to stimuli with purely spatial correlations, pairs of ganglion cells
showed increased correlations consistent with a static, non-adapting receptive
field and nonlinearity. We found that in response to spatio-temporally correlated
stimuli, ganglion cells had faster temporal kernels and tended to have stronger
surrounds. These properties of individual cells, along with gain changes that
opposed changes in effective contrast at the ganglion cell input, largely explained
the pattern of pairwise correlations across stimuli where receptive field measurements
were possible.
article_processing_charge: No
author:
- first_name: Kristina
full_name: Simmons, Kristina
last_name: Simmons
- first_name: Jason
full_name: Prentice, Jason
last_name: Prentice
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: 0000-0002-6699-1455
- first_name: Jan
full_name: Homann, Jan
last_name: Homann
- first_name: Heather
full_name: Yee, Heather
last_name: Yee
- first_name: Stephanie
full_name: Palmer, Stephanie
last_name: Palmer
- first_name: Philip
full_name: Nelson, Philip
last_name: Nelson
- first_name: Vijay
full_name: Balasubramanian, Vijay
last_name: Balasubramanian
citation:
ama: 'Simmons K, Prentice J, Tkačik G, et al. Data from: Transformation of stimulus
correlations by the retina. 2014. doi:10.5061/dryad.246qg'
apa: 'Simmons, K., Prentice, J., Tkačik, G., Homann, J., Yee, H., Palmer, S., …
Balasubramanian, V. (2014). Data from: Transformation of stimulus correlations
by the retina. Dryad. https://doi.org/10.5061/dryad.246qg'
chicago: 'Simmons, Kristina, Jason Prentice, Gašper Tkačik, Jan Homann, Heather
Yee, Stephanie Palmer, Philip Nelson, and Vijay Balasubramanian. “Data from: Transformation
of Stimulus Correlations by the Retina.” Dryad, 2014. https://doi.org/10.5061/dryad.246qg.'
ieee: 'K. Simmons et al., “Data from: Transformation of stimulus correlations
by the retina.” Dryad, 2014.'
ista: 'Simmons K, Prentice J, Tkačik G, Homann J, Yee H, Palmer S, Nelson P, Balasubramanian
V. 2014. Data from: Transformation of stimulus correlations by the retina, Dryad,
10.5061/dryad.246qg.'
mla: 'Simmons, Kristina, et al. Data from: Transformation of Stimulus Correlations
by the Retina. Dryad, 2014, doi:10.5061/dryad.246qg.'
short: K. Simmons, J. Prentice, G. Tkačik, J. Homann, H. Yee, S. Palmer, P. Nelson,
V. Balasubramanian, (2014).
date_created: 2021-07-30T08:13:52Z
date_published: 2014-11-07T00:00:00Z
date_updated: 2025-09-29T14:27:23Z
day: '07'
department:
- _id: GaTk
doi: 10.5061/dryad.246qg
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.246qg
month: '11'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2277'
relation: used_in_publication
status: public
status: public
title: 'Data from: Transformation of stimulus correlations by the retina'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '9753'
abstract:
- lang: eng
text: 'Background: The brood of ants and other social insects is highly susceptible
to pathogens, particularly those that penetrate the soft larval and pupal cuticle.
We here test whether the presence of a pupal cocoon, which occurs in some ant
species but not in others, affects the sanitary brood care and fungal infection
patterns after exposure to the entomopathogenic fungus Metarhizium brunneum. We
use a) a comparative approach analysing four species with either naked or cocooned
pupae and b) a within-species analysis of a single ant species, in which both
pupal types co-exist in the same colony. Results: We found that the presence of
a cocoon did not compromise fungal pathogen detection by the ants and that species
with cocooned pupae increased brood grooming after pathogen exposure. All tested
ant species further removed brood from their nests, which was predominantly expressed
towards larvae and naked pupae treated with the live fungal pathogen. In contrast,
cocooned pupae exposed to live fungus were not removed at higher rates than cocooned
pupae exposed to dead fungus or a sham control. Consistent with this, exposure
to the live fungus caused high numbers of infections and fungal outgrowth in larvae
and naked pupae, but not in cocooned pupae. Moreover, the ants consistently removed
the brood prior to fungal outgrowth, ensuring a clean brood chamber. Conclusion:
Our study suggests that the pupal cocoon has a protective effect against fungal
infection, causing an adaptive change in sanitary behaviours by the ants. It further
demonstrates that brood removal - originally described for honeybees as “hygienic
behaviour” – is a widespread sanitary behaviour in ants, which likely has important
implications on disease dynamics in social insect colonies.'
article_processing_charge: No
author:
- first_name: Simon
full_name: Tragust, Simon
id: 35A7A418-F248-11E8-B48F-1D18A9856A87
last_name: Tragust
- first_name: Line V
full_name: Ugelvig, Line V
id: 3DC97C8E-F248-11E8-B48F-1D18A9856A87
last_name: Ugelvig
orcid: 0000-0003-1832-8883
- first_name: Michel
full_name: Chapuisat, Michel
last_name: Chapuisat
- first_name: Jürgen
full_name: Heinze, Jürgen
last_name: Heinze
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: 'Tragust S, Ugelvig LV, Chapuisat M, Heinze J, Cremer S. Data from: Pupal cocoons
affect sanitary brood care and limit fungal infections in ant colonies. 2014.
doi:10.5061/dryad.nc0gc'
apa: 'Tragust, S., Ugelvig, L. V., Chapuisat, M., Heinze, J., & Cremer, S. (2014).
Data from: Pupal cocoons affect sanitary brood care and limit fungal infections
in ant colonies. Dryad. https://doi.org/10.5061/dryad.nc0gc'
chicago: 'Tragust, Simon, Line V Ugelvig, Michel Chapuisat, Jürgen Heinze, and Sylvia
Cremer. “Data from: Pupal Cocoons Affect Sanitary Brood Care and Limit Fungal
Infections in Ant Colonies.” Dryad, 2014. https://doi.org/10.5061/dryad.nc0gc.'
ieee: 'S. Tragust, L. V. Ugelvig, M. Chapuisat, J. Heinze, and S. Cremer, “Data
from: Pupal cocoons affect sanitary brood care and limit fungal infections in
ant colonies.” Dryad, 2014.'
ista: 'Tragust S, Ugelvig LV, Chapuisat M, Heinze J, Cremer S. 2014. Data from:
Pupal cocoons affect sanitary brood care and limit fungal infections in ant colonies,
Dryad, 10.5061/dryad.nc0gc.'
mla: 'Tragust, Simon, et al. Data from: Pupal Cocoons Affect Sanitary Brood Care
and Limit Fungal Infections in Ant Colonies. Dryad, 2014, doi:10.5061/dryad.nc0gc.'
short: S. Tragust, L.V. Ugelvig, M. Chapuisat, J. Heinze, S. Cremer, (2014).
date_created: 2021-07-30T08:24:11Z
date_published: 2014-10-08T00:00:00Z
date_updated: 2025-09-29T14:24:12Z
day: '08'
department:
- _id: SyCr
doi: 10.5061/dryad.nc0gc
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.nc0gc
month: '10'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2284'
relation: used_in_publication
status: public
status: public
title: 'Data from: Pupal cocoons affect sanitary brood care and limit fungal infections
in ant colonies'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '977'
abstract:
- lang: eng
text: We propose a method for detecting many-body localization (MBL) in disordered
spin systems. The method involves pulsed coherent spin manipulations that probe
the dephasing of a given spin due to its entanglement with a set of distant spins.
It allows one to distinguish the MBL phase from a noninteracting localized phase
and a delocalized phase. In particular, we show that for a properly chosen pulse
sequence the MBL phase exhibits a characteristic power-law decay reflecting its
slow growth of entanglement. We find that this power-law decay is robust with
respect to thermal and disorder averaging, provide numerical simulations supporting
our results, and discuss possible experimental realizations in solid-state and
cold-atom systems.
acknowledgement: |-
We thank E. Altman, Y. Bahri, I. Bloch, T. Giamarchi, D. Huse, V. Oganesyan, A. Pal, D. Pekker, and G. Refael for insightful discussions. The authors acknowledge support from the Harvard Quantum Optics Center, Harvard-MIT CUA, the DARPA OLE program, AFOSR Quantum Simulation MURI, ARO-MURI on Atomtronics, the ARO-MURI Quism program, the Austrian Science Fund (FWF) Project No. J 3361-N20, NSERC grant, and Sloan Research Fellowship. Simulations presented in this article were performed on computational resources supported by the High Performance Computing Center (PICSciE) at Princeton University and the Research Computing Center at Harvard University. Research at Perimeter Institute was supported by the Government of Canada and by the Province of Ontario.
M. S., M. K., and S. G. contributed equally to this work.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Michael
full_name: Knap, Michael J
last_name: Knap
- first_name: Sarang
full_name: Gopalakrishnan, Sarang
last_name: Gopalakrishnan
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
- first_name: Norman
full_name: Yao, Norman Y
last_name: Yao
- first_name: Chris
full_name: Laumann, Chris R
last_name: Laumann
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
- first_name: Mikhail
full_name: Lukin, Mikhail D
last_name: Lukin
- first_name: Eugene
full_name: Demler, Eugene A
last_name: Demler
citation:
ama: Serbyn M, Knap M, Gopalakrishnan S, et al. Interferometric probes of many-body
localization. Physical Review Letters. 2014;113(14). doi:10.1103/PhysRevLett.113.147204
apa: Serbyn, M., Knap, M., Gopalakrishnan, S., Papić, Z., Yao, N., Laumann, C.,
… Demler, E. (2014). Interferometric probes of many-body localization. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.113.147204
chicago: Serbyn, Maksym, Michael Knap, Sarang Gopalakrishnan, Zlatko Papić, Norman
Yao, Chris Laumann, Dmitry Abanin, Mikhail Lukin, and Eugene Demler. “Interferometric
Probes of Many-Body Localization.” Physical Review Letters. American Physical
Society, 2014. https://doi.org/10.1103/PhysRevLett.113.147204.
ieee: M. Serbyn et al., “Interferometric probes of many-body localization,”
Physical Review Letters, vol. 113, no. 14. American Physical Society, 2014.
ista: Serbyn M, Knap M, Gopalakrishnan S, Papić Z, Yao N, Laumann C, Abanin D, Lukin
M, Demler E. 2014. Interferometric probes of many-body localization. Physical
Review Letters. 113(14).
mla: Serbyn, Maksym, et al. “Interferometric Probes of Many-Body Localization.”
Physical Review Letters, vol. 113, no. 14, American Physical Society, 2014,
doi:10.1103/PhysRevLett.113.147204.
short: M. Serbyn, M. Knap, S. Gopalakrishnan, Z. Papić, N. Yao, C. Laumann, D. Abanin,
M. Lukin, E. Demler, Physical Review Letters 113 (2014).
date_created: 2018-12-11T11:49:30Z
date_published: 2014-10-03T00:00:00Z
date_updated: 2021-01-12T08:22:22Z
day: '03'
doi: 10.1103/PhysRevLett.113.147204
extern: 1
intvolume: ' 113'
issue: '14'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1403.0693
month: '10'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6421'
quality_controlled: 0
status: public
title: Interferometric probes of many-body localization
type: journal_article
volume: 113
year: '2014'
...
---
_id: '978'
abstract:
- lang: eng
text: The newly discovered topological crystalline insulators feature a complex
band structure involving multiple Dirac cones, and are potentially highly tunable
by external electric field, temperature or strain. Theoretically, it has been
predicted that the various Dirac cones, which are offset in energy and momentum,
might harbour vastly different orbital character. However, their orbital texture,
which is of immense importance in determining a variety of a materialâ €™ s properties
remains elusive. Here, we unveil the orbital texture of Pb 1â ̂'x Sn x Se, a prototypical
topological crystalline insulator. By using Fourier-transform scanning tunnelling
spectroscopy we measure the interference patterns produced by the scattering of
surface-state electrons. We discover that the intensity and energy dependences
of the Fourier transforms show distinct characteristics, which can be directly
attributed to orbital effects. Our experiments reveal a complex band topology
involving two Lifshitz transitions and establish the orbital nature of the Dirac
bands, which could provide an alternative pathway towards future quantum applications.
acknowledgement: V.M. gratefully acknowledges funding from the US Department of Energy,
Scanned Probe Division under Award Number DE-FG02-12ER46880 for the primary support
of I.Z. and Y.O. (experiments, data analysis and writing the paper) and NSF-ECCS-1232105
for the partial support of W.Z. and D.W. (data acquisition). Work at Massachusetts
Institute of Technology is supported by US Department of Energy, Office of Basic
Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0010526
(L.F.), and NSF DMR 1104498 (M.S.). H.L. acknowledges the Singapore National Research
Foundation for support under NRF Award No. NRF-NRFF2013-03. The work at Northeastern
University is supported by the US Department of Energy grant number DE-FG02-07ER46352,
and benefited from Northeastern University’s Advanced Scientific Computation Center
(ASCC), theory support at the Advanced Light Source, Berkeley and the allocation
of time at the NERSC supercomputing centre through DOE grant number DE-AC02-05CH11231.
W-F.T. and C-Y.H. were supported by the NSC in Taiwan under Grant No. 102-2112-M-110-009.
W-F.T. also thanks C. Fang for useful discussions. Work at Princeton University
is supported by the US National Science Foundation Grant, NSF-DMR-1006492. F.C.
acknowledges the support provided by MOST-Taiwan under project number NSC-102-2119-M-002-004.
author:
- first_name: Ilija
full_name: Zeljkovic, Ilija
last_name: Zeljkovic
- first_name: Yoshinori
full_name: Okada, Yoshinori
last_name: Okada
- first_name: Chengyi
full_name: Huang, Chengyi
last_name: Huang
- first_name: Raman
full_name: Sankar, Raman
last_name: Sankar
- first_name: Daniel
full_name: Walkup, Daniel
last_name: Walkup
- first_name: Wenwen
full_name: Zhou, Wenwen
last_name: Zhou
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Fangcheng
full_name: Chou, Fangcheng
last_name: Chou
- first_name: Wei
full_name: Tsai, Wei-Feng
last_name: Tsai
- first_name: Hsin
full_name: Lin, Hsin
last_name: Lin
- first_name: Arun
full_name: Bansil, Arun
last_name: Bansil
- first_name: Liang
full_name: Fu, Liang
last_name: Fu
- first_name: Md
full_name: Hasan, Md Z
last_name: Hasan
- first_name: Vidya
full_name: Madhavan, Vidya
last_name: Madhavan
citation:
ama: Zeljkovic I, Okada Y, Huang C, et al. Mapping the unconventional orbital texture
in topological crystalline insulators. Nature Physics. 2014;10(8):572-577.
doi:10.1038/nphys3012
apa: Zeljkovic, I., Okada, Y., Huang, C., Sankar, R., Walkup, D., Zhou, W., … Madhavan,
V. (2014). Mapping the unconventional orbital texture in topological crystalline
insulators. Nature Physics. Nature Publishing Group. https://doi.org/10.1038/nphys3012
chicago: Zeljkovic, Ilija, Yoshinori Okada, Chengyi Huang, Raman Sankar, Daniel
Walkup, Wenwen Zhou, Maksym Serbyn, et al. “Mapping the Unconventional Orbital
Texture in Topological Crystalline Insulators.” Nature Physics. Nature
Publishing Group, 2014. https://doi.org/10.1038/nphys3012.
ieee: I. Zeljkovic et al., “Mapping the unconventional orbital texture in
topological crystalline insulators,” Nature Physics, vol. 10, no. 8. Nature
Publishing Group, pp. 572–577, 2014.
ista: Zeljkovic I, Okada Y, Huang C, Sankar R, Walkup D, Zhou W, Serbyn M, Chou
F, Tsai W, Lin H, Bansil A, Fu L, Hasan M, Madhavan V. 2014. Mapping the unconventional
orbital texture in topological crystalline insulators. Nature Physics. 10(8),
572–577.
mla: Zeljkovic, Ilija, et al. “Mapping the Unconventional Orbital Texture in Topological
Crystalline Insulators.” Nature Physics, vol. 10, no. 8, Nature Publishing
Group, 2014, pp. 572–77, doi:10.1038/nphys3012.
short: I. Zeljkovic, Y. Okada, C. Huang, R. Sankar, D. Walkup, W. Zhou, M. Serbyn,
F. Chou, W. Tsai, H. Lin, A. Bansil, L. Fu, M. Hasan, V. Madhavan, Nature Physics
10 (2014) 572–577.
date_created: 2018-12-11T11:49:30Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2021-01-12T08:22:23Z
day: '01'
doi: 10.1038/nphys3012
extern: 1
intvolume: ' 10'
issue: '8'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1312.0164
month: '08'
oa: 1
page: 572 - 577
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '6423'
quality_controlled: 0
status: public
title: Mapping the unconventional orbital texture in topological crystalline insulators
type: journal_article
volume: 10
year: '2014'
...
---
_id: '979'
abstract:
- lang: eng
text: In the recently discovered topological crystalline insulators SnTe and Pb1-xSnx(Te,
Se), crystal symmetry and electronic topology intertwine to create topological
surface states with many interesting features including Lifshitz transition, Van-Hove
singularity, and fermion mass generation. These surface states are protected by
mirror symmetry with respect to the (110) plane. In this work we present a comprehensive
study of the effects of different mirror-symmetry-breaking perturbations on the
(001) surface band structure. Pristine (001) surface states have four branches
of Dirac fermions at low energy. We show that ferroelectric-type structural distortion
generates a mass and gaps out some or all of these Dirac points, while strain
shifts Dirac points in the Brillouin zone. An in-plane magnetic field leaves the
surface state gapless, but introduces asymmetry between Dirac points. Finally,
an out-of-plane magnetic field leads to discrete Landau levels. We show that the
Landau level spectrum has an unusual pattern of degeneracy and interesting features
due to the unique underlying band structure. This suggests that Landau level spectroscopy
can detect and distinguish between different mechanisms of symmetry breaking in
topological crystalline insulators.
acknowledgement: We thank V. Madhavan and Y. Okada for related collaborations, and
P. A. Lee for discussions. M.S. was supported by P. A. Lee via Grant No. NSF DMR
1104498. L.F. is supported by the DOE Office of Basic Energy Sciences, Division
of Materials Sciences and Engineering under award DE-SC0010526.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Liang
full_name: Fu, Liang
last_name: Fu
citation:
ama: Serbyn M, Fu L. Symmetry breaking and Landau quantization in topological crystalline
insulators. Physical Review B - Condensed Matter and Materials Physics.
2014;90(3). doi:10.1103/PhysRevB.90.035402
apa: Serbyn, M., & Fu, L. (2014). Symmetry breaking and Landau quantization
in topological crystalline insulators. Physical Review B - Condensed Matter
and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.90.035402
chicago: Serbyn, Maksym, and Liang Fu. “Symmetry Breaking and Landau Quantization
in Topological Crystalline Insulators.” Physical Review B - Condensed Matter
and Materials Physics. American Physical Society, 2014. https://doi.org/10.1103/PhysRevB.90.035402.
ieee: M. Serbyn and L. Fu, “Symmetry breaking and Landau quantization in topological
crystalline insulators,” Physical Review B - Condensed Matter and Materials
Physics, vol. 90, no. 3. American Physical Society, 2014.
ista: Serbyn M, Fu L. 2014. Symmetry breaking and Landau quantization in topological
crystalline insulators. Physical Review B - Condensed Matter and Materials Physics.
90(3).
mla: Serbyn, Maksym, and Liang Fu. “Symmetry Breaking and Landau Quantization in
Topological Crystalline Insulators.” Physical Review B - Condensed Matter and
Materials Physics, vol. 90, no. 3, American Physical Society, 2014, doi:10.1103/PhysRevB.90.035402.
short: M. Serbyn, L. Fu, Physical Review B - Condensed Matter and Materials Physics
90 (2014).
date_created: 2018-12-11T11:49:31Z
date_published: 2014-07-03T00:00:00Z
date_updated: 2021-01-12T08:22:23Z
day: '03'
doi: 10.1103/PhysRevB.90.035402
extern: 1
intvolume: ' 90'
issue: '3'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1403.8153
month: '07'
oa: 1
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6422'
quality_controlled: 0
status: public
title: Symmetry breaking and Landau quantization in topological crystalline insulators
type: journal_article
volume: 90
year: '2014'
...
---
_id: '98'
abstract:
- lang: eng
text: Relaxation and dephasing of hole spins are measured in a gate-defined Ge/Si
nanowire double quantum dot using a fast pulsed-gate method and dispersive readout.
An inhomogeneous dephasing time T2* ∼ 0.18 μs exceeds corresponding measurements
in III-V semiconductors by more than an order of magnitude, as expected for predominately
nuclear-spin-free materials. Dephasing is observed to be exponential in time,
indicating the presence of a broadband noise source, rather than Gaussian, previously
seen in systems with nuclear-spin-dominated dephasing.
acknowledgement: Funding from the Department of Energy, Office of Science & SCGF,
the EC FP7-ICT project SiSPIN no. 323841, and the Danish National Research Foundation
is acknowledged.
arxiv: 1
author:
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: Thorvald
full_name: Larsen, Thorvald
last_name: Larsen
- first_name: Jun
full_name: Yao, Jun
last_name: Yao
- first_name: Hao
full_name: Yan, Hao
last_name: Yan
- first_name: Charles
full_name: Lieber, Charles
last_name: Lieber
- first_name: Charles
full_name: Marcus, Charles
last_name: Marcus
- first_name: Ferdinand
full_name: Kuemmeth, Ferdinand
last_name: Kuemmeth
citation:
ama: Higginbotham AP, Larsen T, Yao J, et al. Hole spin coherence in a Ge/Si heterostructure
nanowire. Nano Letters. 2014;14(6):3582-3586. doi:10.1021/nl501242b
apa: Higginbotham, A. P., Larsen, T., Yao, J., Yan, H., Lieber, C., Marcus, C.,
& Kuemmeth, F. (2014). Hole spin coherence in a Ge/Si heterostructure nanowire.
Nano Letters. American Chemical Society. https://doi.org/10.1021/nl501242b
chicago: Higginbotham, Andrew P, Thorvald Larsen, Jun Yao, Hao Yan, Charles Lieber,
Charles Marcus, and Ferdinand Kuemmeth. “Hole Spin Coherence in a Ge/Si Heterostructure
Nanowire.” Nano Letters. American Chemical Society, 2014. https://doi.org/10.1021/nl501242b.
ieee: A. P. Higginbotham et al., “Hole spin coherence in a Ge/Si heterostructure
nanowire,” Nano Letters, vol. 14, no. 6. American Chemical Society, pp.
3582–3586, 2014.
ista: Higginbotham AP, Larsen T, Yao J, Yan H, Lieber C, Marcus C, Kuemmeth F. 2014.
Hole spin coherence in a Ge/Si heterostructure nanowire. Nano Letters. 14(6),
3582–3586.
mla: Higginbotham, Andrew P., et al. “Hole Spin Coherence in a Ge/Si Heterostructure
Nanowire.” Nano Letters, vol. 14, no. 6, American Chemical Society, 2014,
pp. 3582–86, doi:10.1021/nl501242b.
short: A.P. Higginbotham, T. Larsen, J. Yao, H. Yan, C. Lieber, C. Marcus, F. Kuemmeth,
Nano Letters 14 (2014) 3582–3586.
date_created: 2018-12-11T11:44:37Z
date_published: 2014-05-05T00:00:00Z
date_updated: 2021-01-12T08:22:24Z
day: '05'
doi: 10.1021/nl501242b
extern: '1'
external_id:
arxiv:
- '1403.2093'
intvolume: ' 14'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1403.2093
month: '05'
oa: 1
oa_version: Preprint
page: 3582 - 3586
publication: Nano Letters
publication_status: published
publisher: American Chemical Society
publist_id: '7956'
quality_controlled: '1'
status: public
title: Hole spin coherence in a Ge/Si heterostructure nanowire
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2014'
...
---
_id: '980'
abstract:
- lang: eng
text: Many-body localized (MBL) systems are characterized by the absence of transport
and thermalization and, therefore, cannot be described by conventional statistical
mechanics. In this paper, using analytic arguments and numerical simulations,
we study the behavior of local observables in an isolated MBL system following
a quantum quench. For the case of a global quench, we find that the local observables
reach stationary, highly nonthermal values at long times as a result of slow dephasing
characteristic of the MBL phase. These stationary values retain the local memory
of the initial state due to the existence of local integrals of motion in the
MBL phase. The temporal fluctuations around stationary values exhibit universal
power-law decay in time, with an exponent set by the localization length and the
diagonal entropy of the initial state. Such a power-law decay holds for any local
observable and is related to the logarithmic in time growth of entanglement in
the MBL phase. This behavior distinguishes the MBL phase from both the Anderson
insulator (where no stationary state is reached) and from the ergodic phase (where
relaxation is expected to be exponential). For the case of a local quench, we
also find a power-law approach of local observables to their stationary values
when the system is prepared in a mixed state. Quench protocols considered in this
paper can be naturally implemented in systems of ultracold atoms in disordered
optical lattices, and the behavior of local observables provides a direct experimental
signature of many-body localization.
acknowledgement: Research at Perimeter Institute is supported by the Government of
Canada through Industry Canada and by the Province of Ontario through the Ministry
of Economic Development & Innovation. We acknowledge support by NSERC Discovery
Grant (D.A.).
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
citation:
ama: Serbyn M, Papić Z, Abanin D. Quantum quenches in the many-body localized phase.
Physical Review B - Condensed Matter and Materials Physics. 2014;90(17).
doi:10.1103/PhysRevB.90.174302
apa: Serbyn, M., Papić, Z., & Abanin, D. (2014). Quantum quenches in the many-body
localized phase. Physical Review B - Condensed Matter and Materials Physics.
American Physical Society. https://doi.org/10.1103/PhysRevB.90.174302
chicago: Serbyn, Maksym, Zlatko Papić, and Dmitry Abanin. “Quantum Quenches in the
Many-Body Localized Phase.” Physical Review B - Condensed Matter and Materials
Physics. American Physical Society, 2014. https://doi.org/10.1103/PhysRevB.90.174302.
ieee: M. Serbyn, Z. Papić, and D. Abanin, “Quantum quenches in the many-body localized
phase,” Physical Review B - Condensed Matter and Materials Physics, vol.
90, no. 17. American Physical Society, 2014.
ista: Serbyn M, Papić Z, Abanin D. 2014. Quantum quenches in the many-body localized
phase. Physical Review B - Condensed Matter and Materials Physics. 90(17).
mla: Serbyn, Maksym, et al. “Quantum Quenches in the Many-Body Localized Phase.”
Physical Review B - Condensed Matter and Materials Physics, vol. 90, no.
17, American Physical Society, 2014, doi:10.1103/PhysRevB.90.174302.
short: M. Serbyn, Z. Papić, D. Abanin, Physical Review B - Condensed Matter and
Materials Physics 90 (2014).
date_created: 2018-12-11T11:49:31Z
date_published: 2014-11-06T00:00:00Z
date_updated: 2021-01-12T08:22:24Z
day: '06'
doi: 10.1103/PhysRevB.90.174302
extern: 1
intvolume: ' 90'
issue: '17'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1408.4105
month: '11'
oa: 1
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6420'
quality_controlled: 0
status: public
title: Quantum quenches in the many-body localized phase
type: journal_article
volume: 90
year: '2014'
...
---
_id: '6739'
abstract:
- lang: eng
text: 'We explore the relationship between polar and RM codes and we describe a
coding scheme which improves upon the performance of the standard polar code at
practical block lengths. Our starting point is the experimental observation that
RM codes have a smaller error probability than polar codes under MAP decoding.
This motivates us to introduce a family of codes that “interpolates” between RM
and polar codes, call this family C inter = {C α : α ∈ [0, 1j}, where C α|α=1
is the original polar code, and C α|α=0 is an RM code. Based on numerical observations,
we remark that the error probability under MAP decoding is an increasing function
of α. MAP decoding has in general exponential complexity, but empirically the
performance of polar codes at finite block lengths is boosted by moving along
the family Cinter even under low-complexity decoding schemes such as, for instance,
belief propagation or successive cancellation list decoder. We demonstrate the
performance gain via numerical simulations for transmission over the erasure channel
as well as the Gaussian channel.'
arxiv: 1
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Hamed
full_name: Hassani, Hamed
last_name: Hassani
- first_name: Rudiger
full_name: Urbanke, Rudiger
last_name: Urbanke
citation:
ama: 'Mondelli M, Hassani H, Urbanke R. From polar to Reed-Muller codes: A technique
to improve the finite-length performance. IEEE Transactions on Communications.
2014;62(9):3084-3091. doi:10.1109/tcomm.2014.2345069'
apa: 'Mondelli, M., Hassani, H., & Urbanke, R. (2014). From polar to Reed-Muller
codes: A technique to improve the finite-length performance. IEEE Transactions
on Communications. IEEE. https://doi.org/10.1109/tcomm.2014.2345069'
chicago: 'Mondelli, Marco, Hamed Hassani, and Rudiger Urbanke. “From Polar to Reed-Muller
Codes: A Technique to Improve the Finite-Length Performance.” IEEE Transactions
on Communications. IEEE, 2014. https://doi.org/10.1109/tcomm.2014.2345069.'
ieee: 'M. Mondelli, H. Hassani, and R. Urbanke, “From polar to Reed-Muller codes:
A technique to improve the finite-length performance,” IEEE Transactions on
Communications, vol. 62, no. 9. IEEE, pp. 3084–3091, 2014.'
ista: 'Mondelli M, Hassani H, Urbanke R. 2014. From polar to Reed-Muller codes:
A technique to improve the finite-length performance. IEEE Transactions on Communications.
62(9), 3084–3091.'
mla: 'Mondelli, Marco, et al. “From Polar to Reed-Muller Codes: A Technique to Improve
the Finite-Length Performance.” IEEE Transactions on Communications, vol.
62, no. 9, IEEE, 2014, pp. 3084–91, doi:10.1109/tcomm.2014.2345069.'
short: M. Mondelli, H. Hassani, R. Urbanke, IEEE Transactions on Communications
62 (2014) 3084–3091.
date_created: 2019-07-31T07:20:21Z
date_published: 2014-09-01T00:00:00Z
date_updated: 2021-01-12T08:08:46Z
day: '01'
doi: 10.1109/tcomm.2014.2345069
extern: '1'
external_id:
arxiv:
- '1401.3127'
intvolume: ' 62'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1401.3127
month: '09'
oa: 1
oa_version: Preprint
page: 3084-3091
publication: IEEE Transactions on Communications
publication_identifier:
issn:
- 0090-6778
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: 'From polar to Reed-Muller codes: A technique to improve the finite-length
performance'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2014'
...
---
_id: '6740'
abstract:
- lang: eng
text: We describe coding techniques that achieve the capacity of a discrete memoryless
asymmetric channel. To do so, we discuss how recent advances in coding for symmetric
channels yield more efficient solutions also for the asymmetric case. In more
detail, we consider three basic approaches. The first one is Gallager's scheme
that concatenates a linear code with a non-linear mapper, in order to bias the
input distribution. We explicitly show that both polar codes and spatially coupled
codes can be employed in this scenario. Further, we derive a scaling law between
the gap to capacity, the cardinality of channel input and output alphabets, and
the required size of the mapper. The second one is an integrated approach in which
the coding scheme is used both for source coding, in order to create codewords
with the capacity-achieving distribution, and for channel coding, in order to
provide error protection. Such a technique has been recently introduced by Honda
and Yamamoto in the context of polar codes, and we show how to apply it also to
the design of sparse graph codes. The third approach is based on an idea due to
Böcherer and Mathar and separates completely the two tasks of source coding and
channel coding by “chaining” together several codewords. We prove that we can
combine any suitable source code with any suitable channel code in order to provide
optimal schemes for asymmetric channels. In particular, polar codes and spatially
coupled codes fulfill the required conditions.
arxiv: 1
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Rudiger
full_name: Urbanke, Rudiger
last_name: Urbanke
- first_name: Hamed
full_name: Hassani, Hamed
last_name: Hassani
citation:
ama: 'Mondelli M, Urbanke R, Hassani H. How to achieve the capacity of asymmetric
channels. In: 52nd Annual Allerton Conference on Communication, Control, and
Computing. IEEE; 2014:789-796. doi:10.1109/allerton.2014.7028535'
apa: 'Mondelli, M., Urbanke, R., & Hassani, H. (2014). How to achieve the capacity
of asymmetric channels. In 52nd Annual Allerton Conference on Communication,
Control, and Computing (pp. 789–796). Monticello, IL, United States: IEEE.
https://doi.org/10.1109/allerton.2014.7028535'
chicago: Mondelli, Marco, Rudiger Urbanke, and Hamed Hassani. “How to Achieve the
Capacity of Asymmetric Channels.” In 52nd Annual Allerton Conference on Communication,
Control, and Computing, 789–96. IEEE, 2014. https://doi.org/10.1109/allerton.2014.7028535.
ieee: M. Mondelli, R. Urbanke, and H. Hassani, “How to achieve the capacity of asymmetric
channels,” in 52nd Annual Allerton Conference on Communication, Control, and
Computing, Monticello, IL, United States, 2014, pp. 789–796.
ista: Mondelli M, Urbanke R, Hassani H. 2014. How to achieve the capacity of asymmetric
channels. 52nd Annual Allerton Conference on Communication, Control, and Computing.
Allerton Conference on Communication, Control, and Computing, 789–796.
mla: Mondelli, Marco, et al. “How to Achieve the Capacity of Asymmetric Channels.”
52nd Annual Allerton Conference on Communication, Control, and Computing,
IEEE, 2014, pp. 789–96, doi:10.1109/allerton.2014.7028535.
short: M. Mondelli, R. Urbanke, H. Hassani, in:, 52nd Annual Allerton Conference
on Communication, Control, and Computing, IEEE, 2014, pp. 789–796.
conference:
end_date: 2014-10-03
location: Monticello, IL, United States
name: Allerton Conference on Communication, Control, and Computing
start_date: 2014-09-30
date_created: 2019-07-31T07:24:23Z
date_published: 2014-10-01T00:00:00Z
date_updated: 2023-02-23T12:49:36Z
day: '01'
doi: 10.1109/allerton.2014.7028535
extern: '1'
external_id:
arxiv:
- '1406.7373'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1406.7373
month: '10'
oa: 1
oa_version: Preprint
page: 789-796
publication: 52nd Annual Allerton Conference on Communication, Control, and Computing
publication_identifier:
eisbn:
- 978-1-4799-8009-3
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
record:
- id: '6678'
relation: later_version
status: public
status: public
title: How to achieve the capacity of asymmetric channels
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '6744'
abstract:
- lang: eng
text: With the aim of extending the coverage and improving the performance of impulse
radio ultra-wideband (UWB) systems, this paper focuses on developing a novel single
differential encoded decode and forward (DF) non-cooperative relaying scheme (NCR).
To favor simple receiver structures, differential noncoherent detection is employed
which enables effective energy capture without any channel estimation. Putting
emphasis on the general case of multi-hop relaying, we illustrate an original
algorithm for the joint power allocation and path selection (JPAPS), minimizing
an approximate expression of the overall bit error rate (BER). In particular,
after deriving a closed-form power allocation strategy, the optimal path selection
is reduced to a shortest path problem on a connected graph, which can be solved
without any topology information with complexity O(N 3 ), N being the number of
available relays of the network. An approximate scheme is also presented, which
reduces the complexity to O(N 2 ) while showing a negligible performance loss,
and for benchmarking purposes, an exhaustive-search based multi-hop DF cooperative
strategy is derived. Simulation results for various network setups corroborate
the effectiveness of the proposed low-complexity JPAPS algorithm, which favorably
compares to existing AF and DF relaying methods.
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Qi
full_name: Zhou, Qi
last_name: Zhou
- first_name: Vincenzo
full_name: Lottici, Vincenzo
last_name: Lottici
- first_name: Xiaoli
full_name: Ma, Xiaoli
last_name: Ma
citation:
ama: Mondelli M, Zhou Q, Lottici V, Ma X. Joint power allocation and path selection
for multi-hop noncoherent decode and forward UWB communications. IEEE Transactions
on Wireless Communications. 2014;13(3):1397-1409. doi:10.1109/twc.2014.020914.130669
apa: Mondelli, M., Zhou, Q., Lottici, V., & Ma, X. (2014). Joint power allocation
and path selection for multi-hop noncoherent decode and forward UWB communications.
IEEE Transactions on Wireless Communications. IEEE. https://doi.org/10.1109/twc.2014.020914.130669
chicago: Mondelli, Marco, Qi Zhou, Vincenzo Lottici, and Xiaoli Ma. “Joint Power
Allocation and Path Selection for Multi-Hop Noncoherent Decode and Forward UWB
Communications.” IEEE Transactions on Wireless Communications. IEEE, 2014.
https://doi.org/10.1109/twc.2014.020914.130669.
ieee: M. Mondelli, Q. Zhou, V. Lottici, and X. Ma, “Joint power allocation and path
selection for multi-hop noncoherent decode and forward UWB communications,” IEEE
Transactions on Wireless Communications, vol. 13, no. 3. IEEE, pp. 1397–1409,
2014.
ista: Mondelli M, Zhou Q, Lottici V, Ma X. 2014. Joint power allocation and path
selection for multi-hop noncoherent decode and forward UWB communications. IEEE
Transactions on Wireless Communications. 13(3), 1397–1409.
mla: Mondelli, Marco, et al. “Joint Power Allocation and Path Selection for Multi-Hop
Noncoherent Decode and Forward UWB Communications.” IEEE Transactions on Wireless
Communications, vol. 13, no. 3, IEEE, 2014, pp. 1397–409, doi:10.1109/twc.2014.020914.130669.
short: M. Mondelli, Q. Zhou, V. Lottici, X. Ma, IEEE Transactions on Wireless Communications
13 (2014) 1397–1409.
date_created: 2019-07-31T09:05:07Z
date_published: 2014-03-20T00:00:00Z
date_updated: 2021-01-12T08:08:48Z
day: '20'
doi: 10.1109/twc.2014.020914.130669
extern: '1'
intvolume: ' 13'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 1397-1409
publication: IEEE Transactions on Wireless Communications
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Joint power allocation and path selection for multi-hop noncoherent decode
and forward UWB communications
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2014'
...
---
_id: '6853'
abstract:
- lang: eng
text: This monograph presents a short course in computational geometry and topology.
In the first part the book covers Voronoi diagrams and Delaunay triangulations,
then it presents the theory of alpha complexes which play a crucial role in biology.
The central part of the book is the homology theory and their computation, including
the theory of persistence which is indispensable for applications, e.g. shape
reconstruction. The target audience comprises researchers and practitioners in
mathematics, biology, neuroscience and computer science, but the book may also
be beneficial to graduate students of these fields.
alternative_title:
- SpringerBriefs in Applied Sciences and Technology
article_processing_charge: No
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
citation:
ama: 'Edelsbrunner H. A Short Course in Computational Geometry and Topology.
1st ed. Cham: Springer Nature; 2014. doi:10.1007/978-3-319-05957-0'
apa: 'Edelsbrunner, H. (2014). A Short Course in Computational Geometry and Topology
(1st ed.). Cham: Springer Nature. https://doi.org/10.1007/978-3-319-05957-0'
chicago: 'Edelsbrunner, Herbert. A Short Course in Computational Geometry and
Topology. 1st ed. SpringerBriefs in Applied Sciences and Technology. Cham:
Springer Nature, 2014. https://doi.org/10.1007/978-3-319-05957-0.'
ieee: 'H. Edelsbrunner, A Short Course in Computational Geometry and Topology,
1st ed. Cham: Springer Nature, 2014.'
ista: 'Edelsbrunner H. 2014. A Short Course in Computational Geometry and Topology
1st ed., Cham: Springer Nature, IX, 110p.'
mla: Edelsbrunner, Herbert. A Short Course in Computational Geometry and Topology.
1st ed., Springer Nature, 2014, doi:10.1007/978-3-319-05957-0.
short: H. Edelsbrunner, A Short Course in Computational Geometry and Topology, 1st
ed., Springer Nature, Cham, 2014.
date_created: 2019-09-06T09:22:33Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2022-03-04T07:47:54Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-319-05957-0
edition: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: IX, 110
place: Cham
publication_identifier:
eisbn:
- 9-783-3190-5957-0
eissn:
- 2191-5318
isbn:
- 9-783-3190-5956-3
issn:
- 2191-530X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: available as eBook via catalog IST BookList
relation: other
url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=356106
- description: available via catalog IST BookList
relation: other
url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=373842
scopus_import: '1'
series_title: SpringerBriefs in Applied Sciences and Technology
status: public
title: A Short Course in Computational Geometry and Topology
type: book
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7038'
article_processing_charge: No
author:
- first_name: Kristóf
full_name: Huszár, Kristóf
id: 33C26278-F248-11E8-B48F-1D18A9856A87
last_name: Huszár
orcid: 0000-0002-5445-5057
- first_name: Michal
full_name: Rolinek, Michal
id: 3CB3BC06-F248-11E8-B48F-1D18A9856A87
last_name: Rolinek
citation:
ama: Huszár K, Rolinek M. Playful Math - An Introduction to Mathematical Games.
IST Austria
apa: Huszár, K., & Rolinek, M. (n.d.). Playful Math - An introduction to
mathematical games. IST Austria.
chicago: Huszár, Kristóf, and Michal Rolinek. Playful Math - An Introduction
to Mathematical Games. IST Austria, n.d.
ieee: K. Huszár and M. Rolinek, Playful Math - An introduction to mathematical
games. IST Austria.
ista: Huszár K, Rolinek M. Playful Math - An introduction to mathematical games,
IST Austria, 5p.
mla: Huszár, Kristóf, and Michal Rolinek. Playful Math - An Introduction to Mathematical
Games. IST Austria.
short: K. Huszár, M. Rolinek, Playful Math - An Introduction to Mathematical Games,
IST Austria, n.d.
corr_author: '1'
date_created: 2019-11-18T15:57:05Z
date_published: 2014-06-30T00:00:00Z
date_updated: 2025-06-26T12:38:53Z
day: '30'
ddc:
- '510'
department:
- _id: VlKo
- _id: UlWa
file:
- access_level: open_access
checksum: 2b94e5e1f4c3fe8ab89b12806276fb09
content_type: application/pdf
creator: dernst
date_created: 2019-11-18T15:57:51Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7039'
file_name: 2014_Playful_Math_Huszar.pdf
file_size: 511233
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '5'
publication_status: draft
publisher: IST Austria
status: public
title: Playful Math - An introduction to mathematical games
type: working_paper
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7071'
abstract:
- lang: eng
text: Spin and orbital quantum numbers play a key role in the physics of Mott insulators,
but in most systems they are connected only indirectly—via the Pauli exclusion
principle and the Coulomb interaction. Iridium-based oxides (iridates) introduce
strong spin–orbit coupling directly, such that these numbers become entwined together
and the Mott physics attains a strong orbital character. In the layered honeycomb
iridates this is thought to generate highly spin–anisotropic magnetic interactions,
coupling the spin to a given spatial direction of exchange and leading to strongly
frustrated magnetism. Here we report a new iridate structure that has the same
local connectivity as the layered honeycomb and exhibits striking evidence for
highly spin–anisotropic exchange. The basic structural units of this material
suggest that a new family of three-dimensional structures could exist, the ‘harmonic
honeycomb’ iridates, of which the present compound is the first example.
article_number: '4203'
article_processing_charge: No
article_type: original
author:
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Tess E.
full_name: Smidt, Tess E.
last_name: Smidt
- first_name: Itamar
full_name: Kimchi, Itamar
last_name: Kimchi
- first_name: Nicholas P.
full_name: Breznay, Nicholas P.
last_name: Breznay
- first_name: Alun
full_name: Biffin, Alun
last_name: Biffin
- first_name: Sungkyun
full_name: Choi, Sungkyun
last_name: Choi
- first_name: Roger D.
full_name: Johnson, Roger D.
last_name: Johnson
- first_name: Radu
full_name: Coldea, Radu
last_name: Coldea
- first_name: Pilanda
full_name: Watkins-Curry, Pilanda
last_name: Watkins-Curry
- first_name: Gregory T.
full_name: McCandless, Gregory T.
last_name: McCandless
- first_name: Julia Y.
full_name: Chan, Julia Y.
last_name: Chan
- first_name: Felipe
full_name: Gandara, Felipe
last_name: Gandara
- first_name: Z.
full_name: Islam, Z.
last_name: Islam
- first_name: Ashvin
full_name: Vishwanath, Ashvin
last_name: Vishwanath
- first_name: Arkady
full_name: Shekhter, Arkady
last_name: Shekhter
- first_name: Ross D.
full_name: McDonald, Ross D.
last_name: McDonald
- first_name: James G.
full_name: Analytis, James G.
last_name: Analytis
citation:
ama: Modic KA, Smidt TE, Kimchi I, et al. Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate. Nature Communications. 2014;5. doi:10.1038/ncomms5203
apa: Modic, K. A., Smidt, T. E., Kimchi, I., Breznay, N. P., Biffin, A., Choi, S.,
… Analytis, J. G. (2014). Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate. Nature Communications. Springer Science and
Business Media LLC. https://doi.org/10.1038/ncomms5203
chicago: Modic, Kimberly A, Tess E. Smidt, Itamar Kimchi, Nicholas P. Breznay, Alun
Biffin, Sungkyun Choi, Roger D. Johnson, et al. “Realization of a Three-Dimensional
Spin–Anisotropic Harmonic Honeycomb Iridate.” Nature Communications. Springer
Science and Business Media LLC, 2014. https://doi.org/10.1038/ncomms5203.
ieee: K. A. Modic et al., “Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate,” Nature Communications, vol. 5. Springer Science
and Business Media LLC, 2014.
ista: Modic KA, Smidt TE, Kimchi I, Breznay NP, Biffin A, Choi S, Johnson RD, Coldea
R, Watkins-Curry P, McCandless GT, Chan JY, Gandara F, Islam Z, Vishwanath A,
Shekhter A, McDonald RD, Analytis JG. 2014. Realization of a three-dimensional
spin–anisotropic harmonic honeycomb iridate. Nature Communications. 5, 4203.
mla: Modic, Kimberly A., et al. “Realization of a Three-Dimensional Spin–Anisotropic
Harmonic Honeycomb Iridate.” Nature Communications, vol. 5, 4203, Springer
Science and Business Media LLC, 2014, doi:10.1038/ncomms5203.
short: K.A. Modic, T.E. Smidt, I. Kimchi, N.P. Breznay, A. Biffin, S. Choi, R.D.
Johnson, R. Coldea, P. Watkins-Curry, G.T. McCandless, J.Y. Chan, F. Gandara,
Z. Islam, A. Vishwanath, A. Shekhter, R.D. McDonald, J.G. Analytis, Nature Communications
5 (2014).
date_created: 2019-11-19T13:22:39Z
date_published: 2014-06-27T00:00:00Z
date_updated: 2021-01-12T08:11:42Z
day: '27'
ddc:
- '530'
doi: 10.1038/ncomms5203
extern: '1'
file:
- access_level: open_access
checksum: d290f0bfa93c5169cc6c8086874c5a78
content_type: application/pdf
creator: dernst
date_created: 2019-11-26T12:44:23Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7113'
file_name: 2014_NatureComm_Modic.pdf
file_size: 4832820
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
intvolume: ' 5'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2014'
...
---
_id: '7072'
abstract:
- lang: eng
text: We investigate the structural and magnetic properties of two molecule-based
magnets synthesized from the same starting components. Their different structural
motifs promote contrasting exchange pathways and consequently lead to markedly
different magnetic ground states. Through examination of their structural and
magnetic properties we show that [Cu(pyz)(H2O)(gly)2](ClO4)2 may be considered
a quasi-one-dimensional quantum Heisenberg antiferromagnet whereas the related
compound [Cu(pyz)(gly)](ClO4), which is formed from dimers of antiferromagnetically
interacting Cu2+ spins, remains disordered down to at least 0.03 K in zero field
but shows a field-temperature phase diagram reminiscent of that seen in materials
showing a Bose-Einstein condensation of magnons.
article_number: '207201'
article_processing_charge: No
article_type: original
author:
- first_name: T.
full_name: Lancaster, T.
last_name: Lancaster
- first_name: P. A.
full_name: Goddard, P. A.
last_name: Goddard
- first_name: S. J.
full_name: Blundell, S. J.
last_name: Blundell
- first_name: F. R.
full_name: Foronda, F. R.
last_name: Foronda
- first_name: S.
full_name: Ghannadzadeh, S.
last_name: Ghannadzadeh
- first_name: J. S.
full_name: Möller, J. S.
last_name: Möller
- first_name: P. J.
full_name: Baker, P. J.
last_name: Baker
- first_name: F. L.
full_name: Pratt, F. L.
last_name: Pratt
- first_name: C.
full_name: Baines, C.
last_name: Baines
- first_name: L.
full_name: Huang, L.
last_name: Huang
- first_name: J.
full_name: Wosnitza, J.
last_name: Wosnitza
- first_name: R. D.
full_name: McDonald, R. D.
last_name: McDonald
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: J.
full_name: Singleton, J.
last_name: Singleton
- first_name: C. V.
full_name: Topping, C. V.
last_name: Topping
- first_name: T. A. W.
full_name: Beale, T. A. W.
last_name: Beale
- first_name: F.
full_name: Xiao, F.
last_name: Xiao
- first_name: J. A.
full_name: Schlueter, J. A.
last_name: Schlueter
- first_name: A. M.
full_name: Barton, A. M.
last_name: Barton
- first_name: R. D.
full_name: Cabrera, R. D.
last_name: Cabrera
- first_name: K. E.
full_name: Carreiro, K. E.
last_name: Carreiro
- first_name: H. E.
full_name: Tran, H. E.
last_name: Tran
- first_name: J. L.
full_name: Manson, J. L.
last_name: Manson
citation:
ama: Lancaster T, Goddard PA, Blundell SJ, et al. Controlling magnetic order and
quantum disorder in molecule-based magnets. Physical Review Letters. 2014;112(20).
doi:10.1103/physrevlett.112.207201
apa: Lancaster, T., Goddard, P. A., Blundell, S. J., Foronda, F. R., Ghannadzadeh,
S., Möller, J. S., … Manson, J. L. (2014). Controlling magnetic order and quantum
disorder in molecule-based magnets. Physical Review Letters. APS. https://doi.org/10.1103/physrevlett.112.207201
chicago: Lancaster, T., P. A. Goddard, S. J. Blundell, F. R. Foronda, S. Ghannadzadeh,
J. S. Möller, P. J. Baker, et al. “Controlling Magnetic Order and Quantum Disorder
in Molecule-Based Magnets.” Physical Review Letters. APS, 2014. https://doi.org/10.1103/physrevlett.112.207201.
ieee: T. Lancaster et al., “Controlling magnetic order and quantum disorder
in molecule-based magnets,” Physical Review Letters, vol. 112, no. 20.
APS, 2014.
ista: Lancaster T, Goddard PA, Blundell SJ, Foronda FR, Ghannadzadeh S, Möller JS,
Baker PJ, Pratt FL, Baines C, Huang L, Wosnitza J, McDonald RD, Modic KA, Singleton
J, Topping CV, Beale TAW, Xiao F, Schlueter JA, Barton AM, Cabrera RD, Carreiro
KE, Tran HE, Manson JL. 2014. Controlling magnetic order and quantum disorder
in molecule-based magnets. Physical Review Letters. 112(20), 207201.
mla: Lancaster, T., et al. “Controlling Magnetic Order and Quantum Disorder in Molecule-Based
Magnets.” Physical Review Letters, vol. 112, no. 20, 207201, APS, 2014,
doi:10.1103/physrevlett.112.207201.
short: T. Lancaster, P.A. Goddard, S.J. Blundell, F.R. Foronda, S. Ghannadzadeh,
J.S. Möller, P.J. Baker, F.L. Pratt, C. Baines, L. Huang, J. Wosnitza, R.D. McDonald,
K.A. Modic, J. Singleton, C.V. Topping, T.A.W. Beale, F. Xiao, J.A. Schlueter,
A.M. Barton, R.D. Cabrera, K.E. Carreiro, H.E. Tran, J.L. Manson, Physical Review
Letters 112 (2014).
date_created: 2019-11-19T13:23:13Z
date_published: 2014-05-19T00:00:00Z
date_updated: 2021-01-12T08:11:42Z
day: '19'
doi: 10.1103/physrevlett.112.207201
extern: '1'
intvolume: ' 112'
issue: '20'
language:
- iso: eng
month: '05'
oa_version: None
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: APS
quality_controlled: '1'
status: public
title: Controlling magnetic order and quantum disorder in molecule-based magnets
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 112
year: '2014'
...
---
_id: '7300'
abstract:
- lang: eng
text: Photoinduced electron transfer (PET), which causes pH-dependent quenching
of fluorescent dyes, is more effectively introduced by phenolic groups than by
amino groups which have been much more commonly used so far. That is demonstrated
by fluorescence measurements involving several classes of fluorophores. Electrochemical
measurements show that PET in several amino-modified dyes is thermodynamically
favorable, even though it was not experimentally found, underlining the importance
of kinetic aspects to the process. Consequently, the attachment of phenolic groups
allows for fast and simple preparation of a wide selection of fluorescent pH-probes
with tailor-made spectral properties, sensitive ranges, and individual advantages,
so that a large number of applications can be realized. Fluorophores carrying
phenolic groups may also be used for sensing analytes other than pH or molecular
switching and signaling.
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Aigner, Daniel
last_name: Aigner
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Martin
full_name: Wilkening, Martin
last_name: Wilkening
- first_name: Robert
full_name: Saf, Robert
last_name: Saf
- first_name: Sergey M.
full_name: Borisov, Sergey M.
last_name: Borisov
- first_name: Ingo
full_name: Klimant, Ingo
last_name: Klimant
citation:
ama: Aigner D, Freunberger SA, Wilkening M, Saf R, Borisov SM, Klimant I. Enhancing
photoinduced electron transfer efficiency of fluorescent pH-probes with halogenated
phenols. Analytical Chemistry. 2014;86(18):9293-9300. doi:10.1021/ac502513g
apa: Aigner, D., Freunberger, S. A., Wilkening, M., Saf, R., Borisov, S. M., &
Klimant, I. (2014). Enhancing photoinduced electron transfer efficiency of fluorescent
pH-probes with halogenated phenols. Analytical Chemistry. ACS. https://doi.org/10.1021/ac502513g
chicago: Aigner, Daniel, Stefan Alexander Freunberger, Martin Wilkening, Robert
Saf, Sergey M. Borisov, and Ingo Klimant. “Enhancing Photoinduced Electron Transfer
Efficiency of Fluorescent PH-Probes with Halogenated Phenols.” Analytical Chemistry.
ACS, 2014. https://doi.org/10.1021/ac502513g.
ieee: D. Aigner, S. A. Freunberger, M. Wilkening, R. Saf, S. M. Borisov, and I.
Klimant, “Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes
with halogenated phenols,” Analytical Chemistry, vol. 86, no. 18. ACS,
pp. 9293–9300, 2014.
ista: Aigner D, Freunberger SA, Wilkening M, Saf R, Borisov SM, Klimant I. 2014.
Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes with
halogenated phenols. Analytical Chemistry. 86(18), 9293–9300.
mla: Aigner, Daniel, et al. “Enhancing Photoinduced Electron Transfer Efficiency
of Fluorescent PH-Probes with Halogenated Phenols.” Analytical Chemistry,
vol. 86, no. 18, ACS, 2014, pp. 9293–300, doi:10.1021/ac502513g.
short: D. Aigner, S.A. Freunberger, M. Wilkening, R. Saf, S.M. Borisov, I. Klimant,
Analytical Chemistry 86 (2014) 9293–9300.
date_created: 2020-01-15T12:17:17Z
date_published: 2014-08-14T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '14'
doi: 10.1021/ac502513g
extern: '1'
intvolume: ' 86'
issue: '18'
language:
- iso: eng
month: '08'
oa_version: None
page: 9293-9300
publication: Analytical Chemistry
publication_identifier:
issn:
- 0003-2700
- 1520-6882
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes
with halogenated phenols
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 86
year: '2014'
...
---
_id: '7301'
abstract:
- lang: eng
text: Several problems arise at the O2 (positive) electrode in the Li-air battery,
including solvent/electrode decomposition and electrode passivation by insulating
Li2O2. Progress partially depends on exploring the basic electrochemistry of O2
reduction. Here we describe the effect of complexing-cations on the electrochemical
reduction of O2 in DMSO in the presence and absence of a Li salt. The solubility
of alkaline peroxides in DMSO is enhanced by the complexing-cations, consistent
with their strong interaction with reduced O2. The complexing-cations also increase
the rate of the 1-electron O2 reduction to O2•– by up to six-fold (k° = 2.4 ×10–3
to 1.5 × 10–2 cm s–1) whether or not Li+ ions are present. In the absence of Li+,
the complexing-cations also promote the reduction of O2•– to O22–. In the presence
of Li+ and complexing-cations, and despite the interaction of the reduced O2 with
the latter, SERS confirms that the product is still Li2O2.
article_processing_charge: No
article_type: original
author:
- first_name: Chunmei
full_name: Li, Chunmei
last_name: Li
- first_name: Olivier
full_name: Fontaine, Olivier
last_name: Fontaine
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Lee
full_name: Johnson, Lee
last_name: Johnson
- first_name: Sylvie
full_name: Grugeon, Sylvie
last_name: Grugeon
- first_name: Stéphane
full_name: Laruelle, Stéphane
last_name: Laruelle
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
- first_name: Michel
full_name: Armand, Michel
last_name: Armand
citation:
ama: 'Li C, Fontaine O, Freunberger SA, et al. Aprotic Li–O2 battery: Influence
of complexing agents on oxygen reduction in an aprotic solvent. The Journal
of Physical Chemistry C. 2014;118(7):3393-3401. doi:10.1021/jp4093805'
apa: 'Li, C., Fontaine, O., Freunberger, S. A., Johnson, L., Grugeon, S., Laruelle,
S., … Armand, M. (2014). Aprotic Li–O2 battery: Influence of complexing agents
on oxygen reduction in an aprotic solvent. The Journal of Physical Chemistry
C. ACS. https://doi.org/10.1021/jp4093805'
chicago: 'Li, Chunmei, Olivier Fontaine, Stefan Alexander Freunberger, Lee Johnson,
Sylvie Grugeon, Stéphane Laruelle, Peter G. Bruce, and Michel Armand. “Aprotic
Li–O2 Battery: Influence of Complexing Agents on Oxygen Reduction in an Aprotic
Solvent.” The Journal of Physical Chemistry C. ACS, 2014. https://doi.org/10.1021/jp4093805.'
ieee: 'C. Li et al., “Aprotic Li–O2 battery: Influence of complexing agents
on oxygen reduction in an aprotic solvent,” The Journal of Physical Chemistry
C, vol. 118, no. 7. ACS, pp. 3393–3401, 2014.'
ista: 'Li C, Fontaine O, Freunberger SA, Johnson L, Grugeon S, Laruelle S, Bruce
PG, Armand M. 2014. Aprotic Li–O2 battery: Influence of complexing agents on oxygen
reduction in an aprotic solvent. The Journal of Physical Chemistry C. 118(7),
3393–3401.'
mla: 'Li, Chunmei, et al. “Aprotic Li–O2 Battery: Influence of Complexing Agents
on Oxygen Reduction in an Aprotic Solvent.” The Journal of Physical Chemistry
C, vol. 118, no. 7, ACS, 2014, pp. 3393–401, doi:10.1021/jp4093805.'
short: C. Li, O. Fontaine, S.A. Freunberger, L. Johnson, S. Grugeon, S. Laruelle,
P.G. Bruce, M. Armand, The Journal of Physical Chemistry C 118 (2014) 3393–3401.
date_created: 2020-01-15T12:17:28Z
date_published: 2014-01-29T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '29'
doi: 10.1021/jp4093805
extern: '1'
intvolume: ' 118'
issue: '7'
language:
- iso: eng
month: '01'
oa_version: None
page: 3393-3401
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: 'Aprotic Li–O2 battery: Influence of complexing agents on oxygen reduction
in an aprotic solvent'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 118
year: '2014'
...
---
_id: '7302'
abstract:
- lang: eng
text: Understanding charge carrier transport in Li2O2, the storage material in the
non-aqueous Li-O2 battery, is key to the development of this high-energy battery.
Here, we studied ionic transport properties and Li self-diffusion in nanocrystalline
Li2O2 by conductivity and temperature variable 7Li NMR spectroscopy. Nanostructured
Li2O2, characterized by a mean crystallite size of less than 50 nm as estimated
from X-ray diffraction peak broadening, was prepared by high-energy ball milling
of microcrystalline lithium peroxide with μm sized crystallites. At room temperature
the overall conductivity σ of the microcrystalline reference sample turned out
to be very low (3.4 × 10−13 S cm−1) which is in agreement with results from temperature-variable
7Li NMR line shape measurements. Ball-milling, however, leads to an increase of
σ by approximately two orders of magnitude (1.1 × 10−10 S cm−1); correspondingly,
the activation energy decreases from 0.89 eV to 0.82 eV. The electronic contribution
σeon, however, is in the order of 9 × 10−12 S cm−1 which makes less than 10% of
the total value. Interestingly, 7Li NMR lines of nano-Li2O2 undergo pronounced
heterogeneous motional narrowing which manifests in a two-component line shape
emerging with increasing temperatures. Most likely, the enhancement in σ can be
traced back to the generation of a spin reservoir with highly mobile Li ions;
these are expected to reside in the nearest neighbourhood of defects generated
or near the structurally disordered and defect-rich interfacial regions formed
during mechanical treatment.
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: Dunst, A.
last_name: Dunst
- first_name: V.
full_name: Epp, V.
last_name: Epp
- first_name: I.
full_name: Hanzu, I.
last_name: Hanzu
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: M.
full_name: Wilkening, M.
last_name: Wilkening
citation:
ama: Dunst A, Epp V, Hanzu I, Freunberger SA, Wilkening M. Short-range Li diffusion
vs. long-range ionic conduction in nanocrystalline lithium peroxide Li2O2—the
discharge product in lithium-air batteries. Energy & Environmental Science.
2014;7(8):2739-2752. doi:10.1039/c4ee00496e
apa: Dunst, A., Epp, V., Hanzu, I., Freunberger, S. A., & Wilkening, M. (2014).
Short-range Li diffusion vs. long-range ionic conduction in nanocrystalline lithium
peroxide Li2O2—the discharge product in lithium-air batteries. Energy &
Environmental Science. RSC. https://doi.org/10.1039/c4ee00496e
chicago: Dunst, A., V. Epp, I. Hanzu, Stefan Alexander Freunberger, and M. Wilkening.
“Short-Range Li Diffusion vs. Long-Range Ionic Conduction in Nanocrystalline Lithium
Peroxide Li2O2—the Discharge Product in Lithium-Air Batteries.” Energy &
Environmental Science. RSC, 2014. https://doi.org/10.1039/c4ee00496e.
ieee: A. Dunst, V. Epp, I. Hanzu, S. A. Freunberger, and M. Wilkening, “Short-range
Li diffusion vs. long-range ionic conduction in nanocrystalline lithium peroxide
Li2O2—the discharge product in lithium-air batteries,” Energy & Environmental
Science, vol. 7, no. 8. RSC, pp. 2739–2752, 2014.
ista: Dunst A, Epp V, Hanzu I, Freunberger SA, Wilkening M. 2014. Short-range Li
diffusion vs. long-range ionic conduction in nanocrystalline lithium peroxide
Li2O2—the discharge product in lithium-air batteries. Energy & Environmental
Science. 7(8), 2739–2752.
mla: Dunst, A., et al. “Short-Range Li Diffusion vs. Long-Range Ionic Conduction
in Nanocrystalline Lithium Peroxide Li2O2—the Discharge Product in Lithium-Air
Batteries.” Energy & Environmental Science, vol. 7, no. 8, RSC, 2014,
pp. 2739–52, doi:10.1039/c4ee00496e.
short: A. Dunst, V. Epp, I. Hanzu, S.A. Freunberger, M. Wilkening, Energy &
Environmental Science 7 (2014) 2739–2752.
date_created: 2020-01-15T12:17:43Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '01'
doi: 10.1039/c4ee00496e
extern: '1'
intvolume: ' 7'
issue: '8'
language:
- iso: eng
month: '08'
oa_version: Published Version
page: 2739-2752
publication: Energy & Environmental Science
publication_identifier:
issn:
- 1754-5692
- 1754-5706
publication_status: published
publisher: RSC
quality_controlled: '1'
status: public
title: Short-range Li diffusion vs. long-range ionic conduction in nanocrystalline
lithium peroxide Li2O2—the discharge product in lithium-air batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2014'
...
---
_id: '7303'
abstract:
- lang: eng
text: The electrolyte in the non-aqueous (aprotic) lithium air battery has a profound
influence on the reactions that occur at the anode and cathode, and hence its
overall operation on discharge/charge. It must possess a wide range of attributes,
exceeding the requirements of electrolytes for Lithium ion batteries by far. The
most important additional issues are stability at both anode and cathode in the
presence of O2. The known problems with cycling the Li metal/non-aqueous electrolyte
interface are further complicated by O2. New and much less understood are the
reactions at the O2 cathode/electrolyte interface where the highly reversible
formation/decomposition of Li2O2 on discharge/charge is critical for the operation
of the non-aqueous lithium air battery. Many aprotic electrolytes exhibit decomposition
at the cathode during discharge and charge due to the presence of reactive reduced
O2 species affecting potential, capacity and kinetics on discharge and charge,
cyclability and calendar life. Identifying suitable electrolytes is one of the
key challenges for the non-aqueous lithium air battery at the present time. Following
the realisation that cyclability of such cells in the initially used organic carbonate
electrolytes is due to back-to-back irreversible reactions the stability of the
non-aqueous electrolytes became a major focus of research on rechargeable lithium
air batteries. This realisation led to the establishment of a suite of experimental
and computational methods capable of screening the stability of electrolytes.
These allow for greater mechanistic understanding of the reactivity and guide
the way towards designing more stable systems. A range of electrolytes based on
ethers, amides, sulfones, ionic liquids and dimethyl sulfoxide have been investigated.
All are more stable than the organic carbonates, but not all are equally stable.
Even though it was soon realised, by a number of groups, that ethers exhibit side
reactions on discharge and charge, they still remain the choice in many studies.
To date dimethyl sulfoxide and dimethylacetamide were identified as the most stable
electrolytes. In conjunction with the investigation of electrolyte stability the
importance of electrode stability became more prominent. The stability of the
electrolyte cannot be considered in isolation. Its stability depends on the synergy
between electrolyte and electrode. Carbon based electrodes promote electrolyte
decomposition and decompose on their own. Although great progress has been made
in only a few years, future work on aprotic electrolytes for Li-O2 batteries will
need to explore other electrolytes in the quest for yet lower cost, higher safety,
stability and low volatility.
article_processing_charge: No
author:
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Fanny
full_name: Bardé, Fanny
last_name: Bardé
- first_name: Kensuke
full_name: Takechi, Kensuke
last_name: Takechi
- first_name: Fuminori
full_name: Mizuno, Fuminori
last_name: Mizuno
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. Nonaqueous
Electrolytes. In: Imanishi N, Luntz AC, Bruce P, eds. The Lithium Air Battery:
Fundamentals. New York, NY: Springer Nature; 2014:23-58. doi:10.1007/978-1-4899-8062-5_2'
apa: 'Freunberger, S. A., Chen, Y., Bardé, F., Takechi, K., Mizuno, F., & Bruce,
P. G. (2014). Nonaqueous Electrolytes. In N. Imanishi, A. C. Luntz, & P. Bruce
(Eds.), The Lithium Air Battery: Fundamentals (pp. 23–58). New York, NY:
Springer Nature. https://doi.org/10.1007/978-1-4899-8062-5_2'
chicago: 'Freunberger, Stefan Alexander, Yuhui Chen, Fanny Bardé, Kensuke Takechi,
Fuminori Mizuno, and Peter G. Bruce. “Nonaqueous Electrolytes.” In The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi, Alan C. Luntz, and
Peter Bruce, 23–58. New York, NY: Springer Nature, 2014. https://doi.org/10.1007/978-1-4899-8062-5_2.'
ieee: 'S. A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, and P. G. Bruce,
“Nonaqueous Electrolytes,” in The Lithium Air Battery: Fundamentals, N.
Imanishi, A. C. Luntz, and P. Bruce, Eds. New York, NY: Springer Nature, 2014,
pp. 23–58.'
ista: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. 2014.Nonaqueous
Electrolytes. In: The Lithium Air Battery: Fundamentals. , 23–58.'
mla: 'Freunberger, Stefan Alexander, et al. “Nonaqueous Electrolytes.” The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi et al., Springer Nature,
2014, pp. 23–58, doi:10.1007/978-1-4899-8062-5_2.'
short: 'S.A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, P.G. Bruce,
in:, N. Imanishi, A.C. Luntz, P. Bruce (Eds.), The Lithium Air Battery: Fundamentals,
Springer Nature, New York, NY, 2014, pp. 23–58.'
date_created: 2020-01-15T12:17:55Z
date_published: 2014-03-05T00:00:00Z
date_updated: 2021-01-12T08:12:54Z
day: '05'
doi: 10.1007/978-1-4899-8062-5_2
editor:
- first_name: Nobuyuki
full_name: Imanishi, Nobuyuki
last_name: Imanishi
- first_name: Alan C.
full_name: Luntz, Alan C.
last_name: Luntz
- first_name: Peter
full_name: Bruce, Peter
last_name: Bruce
extern: '1'
language:
- iso: eng
month: '03'
oa_version: None
page: 23-58
place: New York, NY
publication: 'The Lithium Air Battery: Fundamentals'
publication_identifier:
eisbn:
- '9781489980625'
isbn:
- '9781489980618'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Nonaqueous Electrolytes
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...