---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '19276'
abstract:
- lang: eng
text: Impurity motion in a many-body environment has been a central issue in the
field of low-temperature physics for decades. In bosonic quantum fluids, the onset
of a drag force experienced by point-like objects is due to collective environment
excitations, driven by the exchange of linear momentum between the impurity and
the many-body bath. In this work we consider a rotating impurity, with the aim
of exploring how angular momentum is exchanged with the surrounding bosonic environment.
In order to elucidate these issues, we employ a quasiparticle approach based on
the angulon theory, which allows us to effectively deal with the non-trivial algebra
of quantized angular momentum in the presence of a many-body environment. We uncover
how impurity dressing by environmental excitations can establish an exchange channel,
whose effectiveness crucially depends on the initial state of the impurity. Remarkably,
we find that there is a critical value of initial angular momentum, above which
this channel effectively freezes.
acknowledgement: We acknowledge Henrik Stapelfeldt for enlightening discussions. M.L.
acknowledges support by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). A.C. received funding from the European Union’s Horizon Europe research
and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101062862—NeqMolRot.
article_number: '074104'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
- first_name: Giacomo
full_name: Bighin, Giacomo
id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87
last_name: Bighin
orcid: 0000-0001-8823-9777
- first_name: Igor
full_name: Cherepanov, Igor
id: 339C7E5A-F248-11E8-B48F-1D18A9856A87
last_name: Cherepanov
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Cappellaro A, Bighin G, Cherepanov I, Lemeshko M. Environment-limited transfer
of angular momentum in Bose liquids. Journal of Chemical Physics. 2025;162(7).
doi:10.1063/5.0253451
apa: Cappellaro, A., Bighin, G., Cherepanov, I., & Lemeshko, M. (2025). Environment-limited
transfer of angular momentum in Bose liquids. Journal of Chemical Physics.
AIP Publishing. https://doi.org/10.1063/5.0253451
chicago: Cappellaro, Alberto, Giacomo Bighin, Igor Cherepanov, and Mikhail Lemeshko.
“Environment-Limited Transfer of Angular Momentum in Bose Liquids.” Journal
of Chemical Physics. AIP Publishing, 2025. https://doi.org/10.1063/5.0253451.
ieee: A. Cappellaro, G. Bighin, I. Cherepanov, and M. Lemeshko, “Environment-limited
transfer of angular momentum in Bose liquids,” Journal of Chemical Physics,
vol. 162, no. 7. AIP Publishing, 2025.
ista: Cappellaro A, Bighin G, Cherepanov I, Lemeshko M. 2025. Environment-limited
transfer of angular momentum in Bose liquids. Journal of Chemical Physics. 162(7),
074104.
mla: Cappellaro, Alberto, et al. “Environment-Limited Transfer of Angular Momentum
in Bose Liquids.” Journal of Chemical Physics, vol. 162, no. 7, 074104,
AIP Publishing, 2025, doi:10.1063/5.0253451.
short: A. Cappellaro, G. Bighin, I. Cherepanov, M. Lemeshko, Journal of Chemical
Physics 162 (2025).
corr_author: '1'
date_created: 2025-03-02T23:01:51Z
date_published: 2025-02-21T00:00:00Z
date_updated: 2026-01-20T10:11:27Z
day: '21'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0253451
ec_funded: 1
external_id:
arxiv:
- '2501.16066'
isi:
- '001427233100008'
pmid:
- '39964008'
file:
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checksum: c67c37788a949af9f0f45b22a27f8087
content_type: application/pdf
creator: dernst
date_created: 2025-03-04T10:48:03Z
date_updated: 2025-03-04T10:48:03Z
file_id: '19292'
file_name: 2025_JourChemicalPhysics_Cappellaro.pdf
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intvolume: ' 162'
isi: 1
issue: '7'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: bd7b5202-d553-11ed-ba76-9b1c1b258338
grant_number: '101062862'
name: Non-Equilibrium Field Theory of Molecular Rotations
publication: Journal of Chemical Physics
publication_identifier:
eissn:
- 1089-7690
issn:
- 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Environment-limited transfer of angular momentum in Bose liquids
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: 162
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19880'
abstract:
- lang: eng
text: We investigate quantum transport in a two-dimensional electron system coupled
to a chiral molecular potential, demonstrating how molecular chirality and orientation
affect charge and spin transport properties. We propose a minimal model for realizing
true chiral symmetry breaking on a magnetized surface, with a crucial role played
by the tilt angle of the molecular dipole with respect to the surface. For non-zero
tilting, we show that the Hall response exhibits clear signatures of chirality-induced
effects, in both charge- and spin-resolved observables. Concerning the former,
tilted enantiomers produce asymmetric Hall conductances and, even more remarkably,
the persistence of this feature in the absence of spin–orbit coupling (SOC) signals
how the enantiospecific charge response results from electron scattering off the
molecular potential. Concerning spin-resolved observables where SOC plays a relevant
role, we reveal that chiral symmetry breaking is crucial in enabling spin-flipping
processes.
acknowledgement: We thank Artem Volosniev, Narcis Avarvari, Georgios Koutentakis,
Sandro Wimberger, and Binghai Yan for useful discussions. R.A. received funding
from the Austrian Academy of Science ÖWA, Grant No. PR1029OEAW03. M.L. acknowledges
support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).
A.C. received funding from the European Union’s Horizon Europe research and innovation
program under the Marie Skłodowska-Curie Grant Agreement No. 101062862-NeqMolRot.
article_number: '234106'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
citation:
ama: Al Hyder R, Lemeshko M, Cappellaro A. Quantum transport in the presence of
a chiral molecular potential. The Journal of Chemical Physics. 2025;162(23).
doi:10.1063/5.0271155
apa: Al Hyder, R., Lemeshko, M., & Cappellaro, A. (2025). Quantum transport
in the presence of a chiral molecular potential. The Journal of Chemical Physics.
AIP Publishing. https://doi.org/10.1063/5.0271155
chicago: Al Hyder, Ragheed, Mikhail Lemeshko, and Alberto Cappellaro. “Quantum Transport
in the Presence of a Chiral Molecular Potential.” The Journal of Chemical Physics.
AIP Publishing, 2025. https://doi.org/10.1063/5.0271155.
ieee: R. Al Hyder, M. Lemeshko, and A. Cappellaro, “Quantum transport in the presence
of a chiral molecular potential,” The Journal of Chemical Physics, vol.
162, no. 23. AIP Publishing, 2025.
ista: Al Hyder R, Lemeshko M, Cappellaro A. 2025. Quantum transport in the presence
of a chiral molecular potential. The Journal of Chemical Physics. 162(23), 234106.
mla: Al Hyder, Ragheed, et al. “Quantum Transport in the Presence of a Chiral Molecular
Potential.” The Journal of Chemical Physics, vol. 162, no. 23, 234106,
AIP Publishing, 2025, doi:10.1063/5.0271155.
short: R. Al Hyder, M. Lemeshko, A. Cappellaro, The Journal of Chemical Physics
162 (2025).
corr_author: '1'
date_created: 2025-06-23T13:55:28Z
date_published: 2025-06-21T00:00:00Z
date_updated: 2025-09-30T13:40:55Z
day: '21'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0271155
ec_funded: 1
external_id:
arxiv:
- '2503.14124'
isi:
- '001512872900010'
pmid:
- '40526561'
file:
- access_level: open_access
checksum: e278631d949657baa9d5309dad5f4b77
content_type: application/pdf
creator: dernst
date_created: 2025-06-23T14:03:30Z
date_updated: 2025-06-23T14:03:30Z
file_id: '19881'
file_name: 2025_JourChemicalPhysics_AlHyder.pdf
file_size: 7202681
relation: main_file
success: 1
file_date_updated: 2025-06-23T14:03:30Z
fulldoi: https://doi.org/10.1063/5.0271155
has_accepted_license: '1'
intvolume: ' 162'
isi: 1
issue: '23'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: bd7b5202-d553-11ed-ba76-9b1c1b258338
grant_number: '101062862'
name: Non-Equilibrium Field Theory of Molecular Rotations
- _id: 8fa7db46-16d5-11f0-9cad-917600954daf
grant_number: '12078'
name: Polarons in Lead Halide Perovskites
publication: The Journal of Chemical Physics
publication_identifier:
eissn:
- 1089-7690
issn:
- 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantum transport in the presence of a chiral molecular potential
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: 162
year: '2025'
...
---
_id: '14321'
abstract:
- lang: eng
text: We demonstrate the possibility of a coupling between the magnetization direction
of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate
the mechanism of the coupling, we analyze a minimal Stoner model that includes
Rashba spin–orbit coupling due to the electric field on the surface of the ferromagnet.
The proposed mechanism allows us to study magnetic anisotropy of the system with
an extended Stoner–Wohlfarth model and argue that adsorbed achiral molecules can
change magnetocrystalline anisotropy of the substrate. Our research aims to motivate
further experimental studies of the current-free chirality induced spin selectivity
effect involving both enantiomers.
acknowledgement: "We thank Zhanybek Alpichshev, Mohammad Reza Safari, Binghai Yan,
and Yossi Paltiel for enlightening discussions.\r\nM.L. acknowledges support from
the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A. C. received
funding from the European Union’s Horizon Europe research and innovation program
under the Marie Skłodowska-Curie Grant Agreement No. 101062862 - NeqMolRot."
article_number: '104103'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. Achiral dipoles on a ferromagnet
can affect its magnetization direction. The Journal of Chemical Physics.
2023;159(10). doi:10.1063/5.0165806
apa: Al Hyder, R., Cappellaro, A., Lemeshko, M., & Volosniev, A. (2023). Achiral
dipoles on a ferromagnet can affect its magnetization direction. The Journal
of Chemical Physics. AIP Publishing. https://doi.org/10.1063/5.0165806
chicago: Al Hyder, Ragheed, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev.
“Achiral Dipoles on a Ferromagnet Can Affect Its Magnetization Direction.” The
Journal of Chemical Physics. AIP Publishing, 2023. https://doi.org/10.1063/5.0165806.
ieee: R. Al Hyder, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Achiral dipoles
on a ferromagnet can affect its magnetization direction,” The Journal of Chemical
Physics, vol. 159, no. 10. AIP Publishing, 2023.
ista: Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. 2023. Achiral dipoles on
a ferromagnet can affect its magnetization direction. The Journal of Chemical
Physics. 159(10), 104103.
mla: Al Hyder, Ragheed, et al. “Achiral Dipoles on a Ferromagnet Can Affect Its
Magnetization Direction.” The Journal of Chemical Physics, vol. 159, no.
10, 104103, AIP Publishing, 2023, doi:10.1063/5.0165806.
short: R. Al Hyder, A. Cappellaro, M. Lemeshko, A. Volosniev, The Journal of Chemical
Physics 159 (2023).
corr_author: '1'
date_created: 2023-09-13T09:25:09Z
date_published: 2023-09-11T00:00:00Z
date_updated: 2025-09-09T12:57:42Z
day: '11'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0165806
ec_funded: 1
external_id:
arxiv:
- '2306.17592'
isi:
- '001133333600011'
pmid:
- '37694742'
file:
- access_level: open_access
checksum: 507ab65ab29e2c987c94cabad7c5370b
content_type: application/pdf
creator: acappell
date_created: 2023-09-13T09:34:20Z
date_updated: 2023-09-13T09:34:20Z
file_id: '14322'
file_name: 104103_1_5.0165806.pdf
file_size: 5749653
relation: main_file
success: 1
file_date_updated: 2023-09-13T09:34:20Z
fulldoi: https://doi.org/10.1063/5.0165806
has_accepted_license: '1'
intvolume: ' 159'
isi: 1
issue: '10'
keyword:
- Physical and Theoretical Chemistry
- General Physics and Astronomy
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: bd7b5202-d553-11ed-ba76-9b1c1b258338
grant_number: '101062862'
name: Non-Equilibrium Field Theory of Molecular Rotations
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: The Journal of Chemical Physics
publication_identifier:
eissn:
- 1089-7690
issn:
- 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Achiral dipoles on a ferromagnet can affect its magnetization direction
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: 159
year: '2023'
...