Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors

Autores
Cygorek, M.; Tamborenea, Pablo Ignacio; Axt, V. M.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum to the excited carriers and the Rashba interaction conserves their total angular momentum, the resulting electronic spin dynamics is essentially the same for excitation with light with orbital angular momentum l = +|l| and l = −|l|. The differences between cases with different values of |l| are due to the excitation of states with slightly different energies and not to the different angular momenta per se, and vanish for samples with large radii where a k-space quasi-continuum limit can be established. These findings apply not only to the Rashba interaction but also to all other envelope-function approximation spin-orbit Hamiltonians like the Dresselhaus coupling.
Fil: Cygorek, M.. University of Bayreuth; Alemania
Fil: Tamborenea, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. University of Bayreuth; Alemania
Fil: Axt, V. M.. University of Bayreuth; Alemania
Materia
Spin-Orbit Interaction
Twisted Light
Semiconductors
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/46127
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/46127
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductorsCygorek, M.Tamborenea, Pablo IgnacioAxt, V. M.Spin-Orbit InteractionTwisted LightSemiconductorshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum to the excited carriers and the Rashba interaction conserves their total angular momentum, the resulting electronic spin dynamics is essentially the same for excitation with light with orbital angular momentum l = +|l| and l = −|l|. The differences between cases with different values of |l| are due to the excitation of states with slightly different energies and not to the different angular momenta per se, and vanish for samples with large radii where a k-space quasi-continuum limit can be established. These findings apply not only to the Rashba interaction but also to all other envelope-function approximation spin-orbit Hamiltonians like the Dresselhaus coupling.Fil: Cygorek, M.. University of Bayreuth; AlemaniaFil: Tamborenea, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. University of Bayreuth; AlemaniaFil: Axt, V. M.. University of Bayreuth; AlemaniaAmerican Physical Society2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/46127Cygorek, M.; Tamborenea, Pablo Ignacio; Axt, V. M.; Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors; American Physical Society; Physical Review B; 92; 11; 9-2015; 1153011-11530150163-18291095-3795CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.115301info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.115301info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:29:35Zoai:ri.conicet.gov.ar:11336/46127instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:29:35.643CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
title Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
spellingShingle Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
Cygorek, M.
Spin-Orbit Interaction
Twisted Light
Semiconductors
title_short Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
title_full Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
title_fullStr Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
title_full_unstemmed Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
title_sort Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors
dc.creator.none.fl_str_mv Cygorek, M.
Tamborenea, Pablo Ignacio
Axt, V. M.
author Cygorek, M.
author_facet Cygorek, M.
Tamborenea, Pablo Ignacio
Axt, V. M.
author_role author
author2 Tamborenea, Pablo Ignacio
Axt, V. M.
author2_role author
author
dc.subject.none.fl_str_mv Spin-Orbit Interaction
Twisted Light
Semiconductors
topic Spin-Orbit Interaction
Twisted Light
Semiconductors
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum to the excited carriers and the Rashba interaction conserves their total angular momentum, the resulting electronic spin dynamics is essentially the same for excitation with light with orbital angular momentum l = +|l| and l = −|l|. The differences between cases with different values of |l| are due to the excitation of states with slightly different energies and not to the different angular momenta per se, and vanish for samples with large radii where a k-space quasi-continuum limit can be established. These findings apply not only to the Rashba interaction but also to all other envelope-function approximation spin-orbit Hamiltonians like the Dresselhaus coupling.
Fil: Cygorek, M.. University of Bayreuth; Alemania
Fil: Tamborenea, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. University of Bayreuth; Alemania
Fil: Axt, V. M.. University of Bayreuth; Alemania
description We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum to the excited carriers and the Rashba interaction conserves their total angular momentum, the resulting electronic spin dynamics is essentially the same for excitation with light with orbital angular momentum l = +|l| and l = −|l|. The differences between cases with different values of |l| are due to the excitation of states with slightly different energies and not to the different angular momenta per se, and vanish for samples with large radii where a k-space quasi-continuum limit can be established. These findings apply not only to the Rashba interaction but also to all other envelope-function approximation spin-orbit Hamiltonians like the Dresselhaus coupling.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/46127
Cygorek, M.; Tamborenea, Pablo Ignacio; Axt, V. M.; Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors; American Physical Society; Physical Review B; 92; 11; 9-2015; 1153011-1153015
0163-1829
1095-3795
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46127
identifier_str_mv Cygorek, M.; Tamborenea, Pablo Ignacio; Axt, V. M.; Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors; American Physical Society; Physical Review B; 92; 11; 9-2015; 1153011-1153015
0163-1829
1095-3795
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.115301
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.115301
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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