Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems

Autores
Tosi, Leandro; Aligia, Armando Angel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We calculate the conductance through a system of three quantum dots (QDs) under two different sets of conditions that lead to spin filtering effects under an applied magnetic field. In one of them, a spin is localized in one QD, as proposed by Delgado et al. [Phys. Rev. Lett. 101, 226810 (2008)]. In the other one, all dots are equivalent by symmetry and the system is subject to a Rashba spin–orbit coupling. We solve the problem using a simple effective Hamiltonian for the low-energy subspace, improving the accuracy of previous results. We obtain that correlation effects related to the Kondo physics play a minor role for parameters estimated previously and high enough magnetic field. Both systems lead to a magnetic field tunable ‘‘spin valve’’.
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Aligia, Armando Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Materia
Spin transport
AharonovBohm
AharonovCasher
quantum dot systems
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:11336/280177
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systemsTosi, LeandroAligia, Armando AngelSpin transportAharonovBohmAharonovCasherquantum dot systemshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We calculate the conductance through a system of three quantum dots (QDs) under two different sets of conditions that lead to spin filtering effects under an applied magnetic field. In one of them, a spin is localized in one QD, as proposed by Delgado et al. [Phys. Rev. Lett. 101, 226810 (2008)]. In the other one, all dots are equivalent by symmetry and the system is subject to a Rashba spin–orbit coupling. We solve the problem using a simple effective Hamiltonian for the low-energy subspace, improving the accuracy of previous results. We obtain that correlation effects related to the Kondo physics play a minor role for parameters estimated previously and high enough magnetic field. Both systems lead to a magnetic field tunable ‘‘spin valve’’.Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Aligia, Armando Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaWiley VCH Verlag2011-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/280177Tosi, Leandro; Aligia, Armando Angel; Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems; Wiley VCH Verlag; Physica Status Solidi B-basic Research; 248; 3; 2-2011; 732-7400370-1972CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pssb.201046185info:eu-repo/semantics/altIdentifier/doi/10.1002/pssb.201046185info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:10:34Zoai:ri.conicet.gov.ar:11336/280177instacron: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:34982026-02-26 10:10:34.779CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
title Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
spellingShingle Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
Tosi, Leandro
Spin transport
AharonovBohm
AharonovCasher
quantum dot systems
title_short Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
title_full Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
title_fullStr Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
title_full_unstemmed Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
title_sort Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems
dc.creator.none.fl_str_mv Tosi, Leandro
Aligia, Armando Angel
author Tosi, Leandro
author_facet Tosi, Leandro
Aligia, Armando Angel
author_role author
author2 Aligia, Armando Angel
author2_role author
dc.subject.none.fl_str_mv Spin transport
AharonovBohm
AharonovCasher
quantum dot systems
topic Spin transport
AharonovBohm
AharonovCasher
quantum dot systems
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 calculate the conductance through a system of three quantum dots (QDs) under two different sets of conditions that lead to spin filtering effects under an applied magnetic field. In one of them, a spin is localized in one QD, as proposed by Delgado et al. [Phys. Rev. Lett. 101, 226810 (2008)]. In the other one, all dots are equivalent by symmetry and the system is subject to a Rashba spin–orbit coupling. We solve the problem using a simple effective Hamiltonian for the low-energy subspace, improving the accuracy of previous results. We obtain that correlation effects related to the Kondo physics play a minor role for parameters estimated previously and high enough magnetic field. Both systems lead to a magnetic field tunable ‘‘spin valve’’.
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Aligia, Armando Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
description We calculate the conductance through a system of three quantum dots (QDs) under two different sets of conditions that lead to spin filtering effects under an applied magnetic field. In one of them, a spin is localized in one QD, as proposed by Delgado et al. [Phys. Rev. Lett. 101, 226810 (2008)]. In the other one, all dots are equivalent by symmetry and the system is subject to a Rashba spin–orbit coupling. We solve the problem using a simple effective Hamiltonian for the low-energy subspace, improving the accuracy of previous results. We obtain that correlation effects related to the Kondo physics play a minor role for parameters estimated previously and high enough magnetic field. Both systems lead to a magnetic field tunable ‘‘spin valve’’.
publishDate 2011
dc.date.none.fl_str_mv 2011-02
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/11336/280177
Tosi, Leandro; Aligia, Armando Angel; Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems; Wiley VCH Verlag; Physica Status Solidi B-basic Research; 248; 3; 2-2011; 732-740
0370-1972
CONICET Digital
CONICET
url http://hdl.handle.net/11336/280177
identifier_str_mv Tosi, Leandro; Aligia, Armando Angel; Spin selective transport through Aharonov–Bohm and Aharonov–Casher triple quantum dot systems; Wiley VCH Verlag; Physica Status Solidi B-basic Research; 248; 3; 2-2011; 732-740
0370-1972
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pssb.201046185
info:eu-repo/semantics/altIdentifier/doi/10.1002/pssb.201046185
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
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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 13.176822

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