Nonequilibrium transport through magnetic vibrating molecules

Autores
Roura Bas, Pablo Gines; Tosi, Leandro; Aligia, Armando Angel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We calculate the nonequilibrium conductance through a molecule or a quantum dot in which the occupation of the relevant electronic level is coupled with intensity λ to a phonon mode and also to two conducting leads. The system is described by the Anderson-Holstein Hamiltonian. We solve the problem using the Keldysh formalism and the noncrossing approximation for both the electron-electron and the electron-phonon interactions. We obtain a moderate decrease of the Kondo temperature TK with λ for fixed renormalized energy of the localized level Ed̃. The meaning and value of Ed̃ are discussed. The spectral density of localized electrons shows, in addition to the Kondo peak of width 2TK, satellites of this peak shifted by multiples of the phonon frequency ω0. The nonequilibrium conductance as a function of bias voltage Vb at small temperatures also displays peaks at multiples of ω0 in addition to the central dominant Kondo peak near Vb=0.
Fil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigaciones y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Electron-Fonon
Correlaciones
Kondo
Transporte
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:11336/21240
Acceder
id CONICETDig_12c67b9089adb689a3146c70dfb10143
oai_identifier_str oai:ri.conicet.gov.ar:11336/21240
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nonequilibrium transport through magnetic vibrating moleculesRoura Bas, Pablo GinesTosi, LeandroAligia, Armando AngelElectron-FononCorrelacionesKondoTransportehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We calculate the nonequilibrium conductance through a molecule or a quantum dot in which the occupation of the relevant electronic level is coupled with intensity λ to a phonon mode and also to two conducting leads. The system is described by the Anderson-Holstein Hamiltonian. We solve the problem using the Keldysh formalism and the noncrossing approximation for both the electron-electron and the electron-phonon interactions. We obtain a moderate decrease of the Kondo temperature TK with λ for fixed renormalized energy of the localized level Ed̃. The meaning and value of Ed̃ are discussed. The spectral density of localized electrons shows, in addition to the Kondo peak of width 2TK, satellites of this peak shifted by multiples of the phonon frequency ω0. The nonequilibrium conductance as a function of bias voltage Vb at small temperatures also displays peaks at multiples of ω0 in addition to the central dominant Kondo peak near Vb=0.Fil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigaciones y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Physical Society2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21240Roura Bas, Pablo Gines; Tosi, Leandro; Aligia, Armando Angel; Nonequilibrium transport through magnetic vibrating molecules; American Physical Society; Physical Review B - Solid State; 87; 19; 5-2013; 5136-51450556-2805CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.87.195136info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/pdf/10.1103/PhysRevB.87.195136info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:22:51Zoai:ri.conicet.gov.ar:11336/21240instacron: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:34982025-09-17 11:22:51.724CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nonequilibrium transport through magnetic vibrating molecules
title Nonequilibrium transport through magnetic vibrating molecules
spellingShingle Nonequilibrium transport through magnetic vibrating molecules
Roura Bas, Pablo Gines
Electron-Fonon
Correlaciones
Kondo
Transporte
title_short Nonequilibrium transport through magnetic vibrating molecules
title_full Nonequilibrium transport through magnetic vibrating molecules
title_fullStr Nonequilibrium transport through magnetic vibrating molecules
title_full_unstemmed Nonequilibrium transport through magnetic vibrating molecules
title_sort Nonequilibrium transport through magnetic vibrating molecules
dc.creator.none.fl_str_mv Roura Bas, Pablo Gines
Tosi, Leandro
Aligia, Armando Angel
author Roura Bas, Pablo Gines
author_facet Roura Bas, Pablo Gines
Tosi, Leandro
Aligia, Armando Angel
author_role author
author2 Tosi, Leandro
Aligia, Armando Angel
author2_role author
author
dc.subject.none.fl_str_mv Electron-Fonon
Correlaciones
Kondo
Transporte
topic Electron-Fonon
Correlaciones
Kondo
Transporte
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 nonequilibrium conductance through a molecule or a quantum dot in which the occupation of the relevant electronic level is coupled with intensity λ to a phonon mode and also to two conducting leads. The system is described by the Anderson-Holstein Hamiltonian. We solve the problem using the Keldysh formalism and the noncrossing approximation for both the electron-electron and the electron-phonon interactions. We obtain a moderate decrease of the Kondo temperature TK with λ for fixed renormalized energy of the localized level Ed̃. The meaning and value of Ed̃ are discussed. The spectral density of localized electrons shows, in addition to the Kondo peak of width 2TK, satellites of this peak shifted by multiples of the phonon frequency ω0. The nonequilibrium conductance as a function of bias voltage Vb at small temperatures also displays peaks at multiples of ω0 in addition to the central dominant Kondo peak near Vb=0.
Fil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigaciones y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We calculate the nonequilibrium conductance through a molecule or a quantum dot in which the occupation of the relevant electronic level is coupled with intensity λ to a phonon mode and also to two conducting leads. The system is described by the Anderson-Holstein Hamiltonian. We solve the problem using the Keldysh formalism and the noncrossing approximation for both the electron-electron and the electron-phonon interactions. We obtain a moderate decrease of the Kondo temperature TK with λ for fixed renormalized energy of the localized level Ed̃. The meaning and value of Ed̃ are discussed. The spectral density of localized electrons shows, in addition to the Kondo peak of width 2TK, satellites of this peak shifted by multiples of the phonon frequency ω0. The nonequilibrium conductance as a function of bias voltage Vb at small temperatures also displays peaks at multiples of ω0 in addition to the central dominant Kondo peak near Vb=0.
publishDate 2013
dc.date.none.fl_str_mv 2013-05
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/11336/21240
Roura Bas, Pablo Gines; Tosi, Leandro; Aligia, Armando Angel; Nonequilibrium transport through magnetic vibrating molecules; American Physical Society; Physical Review B - Solid State; 87; 19; 5-2013; 5136-5145
0556-2805
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21240
identifier_str_mv Roura Bas, Pablo Gines; Tosi, Leandro; Aligia, Armando Angel; Nonequilibrium transport through magnetic vibrating molecules; American Physical Society; Physical Review B - Solid State; 87; 19; 5-2013; 5136-5145
0556-2805
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.87.195136
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/pdf/10.1103/PhysRevB.87.195136
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
_version_ 1843606574983020544
score 13.001348

Publicaciones similares