Current-induced switching in transport through anisotropic magnetic molecules

Autores
Bode, Niels; Arrachea, Liliana del Carmen; Lozano, Gustavo Sergio; Nunner, Tamara S.; Von Oppen, Felix
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Anisotropic single-molecule magnets may be thought of as molecular switches, with possible applications to molecular spintronics. In this paper, we consider current-induced switching in single-molecule junctions containing an anisotropic magnetic molecule. We assume that the carriers interact with the magnetic molecule through the exchange interaction and focus on the regime of high currents in which the molecular spin dynamics is slow compared to the time which the electrons spend on the molecule. In this limit, the molecular spin obeys a nonequilibrium Langevin equation which takes the form of a generalized Landau-Lifshitz-Gilbert equation and which we derive microscopically by means of a nonequilibrium Born-Oppenheimer approximation. We exploit this Langevin equation to identify the relevant switching mechanisms and to derive the current-induced switching rates. As a by-product, we also derive S-matrix expressions for the various torques entering into the Landau-Lifshitz-Gilbert equation which generalize previous expressions in the literature to nonequilibrium situations. © 2012 American Physical Society.
Fil: Bode, Niels. Freie Universitat Berlin; Alemania
Fil: Arrachea, Liliana del Carmen. Universidad de Buenos Aires; Argentina. 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
Fil: Lozano, Gustavo Sergio. Universidad de Buenos Aires; Argentina. 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
Fil: Nunner, Tamara S.. Freie Universitat Berlin; Alemania
Fil: Von Oppen, Felix. Freie Universitat Berlin; Alemania
Materia
Magnetic
Molecular
Quantum
Transport
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:11336/55660
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/55660
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Current-induced switching in transport through anisotropic magnetic moleculesBode, NielsArrachea, Liliana del CarmenLozano, Gustavo SergioNunner, Tamara S.Von Oppen, FelixMagneticMolecularQuantumTransporthttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Anisotropic single-molecule magnets may be thought of as molecular switches, with possible applications to molecular spintronics. In this paper, we consider current-induced switching in single-molecule junctions containing an anisotropic magnetic molecule. We assume that the carriers interact with the magnetic molecule through the exchange interaction and focus on the regime of high currents in which the molecular spin dynamics is slow compared to the time which the electrons spend on the molecule. In this limit, the molecular spin obeys a nonequilibrium Langevin equation which takes the form of a generalized Landau-Lifshitz-Gilbert equation and which we derive microscopically by means of a nonequilibrium Born-Oppenheimer approximation. We exploit this Langevin equation to identify the relevant switching mechanisms and to derive the current-induced switching rates. As a by-product, we also derive S-matrix expressions for the various torques entering into the Landau-Lifshitz-Gilbert equation which generalize previous expressions in the literature to nonequilibrium situations. © 2012 American Physical Society.Fil: Bode, Niels. Freie Universitat Berlin; AlemaniaFil: Arrachea, Liliana del Carmen. Universidad de Buenos Aires; Argentina. 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; ArgentinaFil: Lozano, Gustavo Sergio. Universidad de Buenos Aires; Argentina. 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; ArgentinaFil: Nunner, Tamara S.. Freie Universitat Berlin; AlemaniaFil: Von Oppen, Felix. Freie Universitat Berlin; AlemaniaAmerican Physical Society2012-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55660Bode, Niels; Arrachea, Liliana del Carmen; Lozano, Gustavo Sergio; Nunner, Tamara S.; Von Oppen, Felix; Current-induced switching in transport through anisotropic magnetic molecules; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 85; 11; 3-2012; 115440-1154501098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.85.115440info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:11:28Zoai:ri.conicet.gov.ar:11336/55660instacron: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:34982025-09-10 13:11:28.211CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Current-induced switching in transport through anisotropic magnetic molecules
title Current-induced switching in transport through anisotropic magnetic molecules
spellingShingle Current-induced switching in transport through anisotropic magnetic molecules
Bode, Niels
Magnetic
Molecular
Quantum
Transport
title_short Current-induced switching in transport through anisotropic magnetic molecules
title_full Current-induced switching in transport through anisotropic magnetic molecules
title_fullStr Current-induced switching in transport through anisotropic magnetic molecules
title_full_unstemmed Current-induced switching in transport through anisotropic magnetic molecules
title_sort Current-induced switching in transport through anisotropic magnetic molecules
dc.creator.none.fl_str_mv Bode, Niels
Arrachea, Liliana del Carmen
Lozano, Gustavo Sergio
Nunner, Tamara S.
Von Oppen, Felix
author Bode, Niels
author_facet Bode, Niels
Arrachea, Liliana del Carmen
Lozano, Gustavo Sergio
Nunner, Tamara S.
Von Oppen, Felix
author_role author
author2 Arrachea, Liliana del Carmen
Lozano, Gustavo Sergio
Nunner, Tamara S.
Von Oppen, Felix
author2_role author
author
author
author
dc.subject.none.fl_str_mv Magnetic
Molecular
Quantum
Transport
topic Magnetic
Molecular
Quantum
Transport
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Anisotropic single-molecule magnets may be thought of as molecular switches, with possible applications to molecular spintronics. In this paper, we consider current-induced switching in single-molecule junctions containing an anisotropic magnetic molecule. We assume that the carriers interact with the magnetic molecule through the exchange interaction and focus on the regime of high currents in which the molecular spin dynamics is slow compared to the time which the electrons spend on the molecule. In this limit, the molecular spin obeys a nonequilibrium Langevin equation which takes the form of a generalized Landau-Lifshitz-Gilbert equation and which we derive microscopically by means of a nonequilibrium Born-Oppenheimer approximation. We exploit this Langevin equation to identify the relevant switching mechanisms and to derive the current-induced switching rates. As a by-product, we also derive S-matrix expressions for the various torques entering into the Landau-Lifshitz-Gilbert equation which generalize previous expressions in the literature to nonequilibrium situations. © 2012 American Physical Society.
Fil: Bode, Niels. Freie Universitat Berlin; Alemania
Fil: Arrachea, Liliana del Carmen. Universidad de Buenos Aires; Argentina. 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
Fil: Lozano, Gustavo Sergio. Universidad de Buenos Aires; Argentina. 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
Fil: Nunner, Tamara S.. Freie Universitat Berlin; Alemania
Fil: Von Oppen, Felix. Freie Universitat Berlin; Alemania
description Anisotropic single-molecule magnets may be thought of as molecular switches, with possible applications to molecular spintronics. In this paper, we consider current-induced switching in single-molecule junctions containing an anisotropic magnetic molecule. We assume that the carriers interact with the magnetic molecule through the exchange interaction and focus on the regime of high currents in which the molecular spin dynamics is slow compared to the time which the electrons spend on the molecule. In this limit, the molecular spin obeys a nonequilibrium Langevin equation which takes the form of a generalized Landau-Lifshitz-Gilbert equation and which we derive microscopically by means of a nonequilibrium Born-Oppenheimer approximation. We exploit this Langevin equation to identify the relevant switching mechanisms and to derive the current-induced switching rates. As a by-product, we also derive S-matrix expressions for the various torques entering into the Landau-Lifshitz-Gilbert equation which generalize previous expressions in the literature to nonequilibrium situations. © 2012 American Physical Society.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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/11336/55660
Bode, Niels; Arrachea, Liliana del Carmen; Lozano, Gustavo Sergio; Nunner, Tamara S.; Von Oppen, Felix; Current-induced switching in transport through anisotropic magnetic molecules; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 85; 11; 3-2012; 115440-115450
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55660
identifier_str_mv Bode, Niels; Arrachea, Liliana del Carmen; Lozano, Gustavo Sergio; Nunner, Tamara S.; Von Oppen, Felix; Current-induced switching in transport through anisotropic magnetic molecules; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 85; 11; 3-2012; 115440-115450
1098-0121
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.85.115440
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 12.993085

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