Kondo temperature when the Fermi level is near a step in the conduction density of states

Autores
Fernández, Joaquín; Aligia, Armando Ángel; Roura Bas, Pablo Gines; Andrade Hoyos, Jhon Alejandro
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The (111) surface of Cu, Ag, and Au is characterized by a band of surface Shockley states with a constant density of states beginning slightly below the Fermi energy. These states as well as bulk states hybridize with magnetic impurities which can be placed above the surface. We calculate the characteristic low-temperature energy scale, the Kondo temperature TK of the impurity Anderson model, as the bottom of the conduction band Ds crosses the Fermi energy ϵF. We find simple power laws TK≃|Ds-ϵF|η, where η depends on the sign of Ds-ϵF, the ratio between surface and bulk hybridizations with the impurity Δs/Δb, and the ratio between on-site and Coulomb energy Ed/U in the model.
Fil: Fernández, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Andrade Hoyos, Jhon Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
Materia
Kondo temperature
Surface Shockley states
Impurity Anderson Model
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67139
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/67139
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Kondo temperature when the Fermi level is near a step in the conduction density of statesFernández, JoaquínAligia, Armando ÁngelRoura Bas, Pablo GinesAndrade Hoyos, Jhon AlejandroKondo temperatureSurface Shockley statesImpurity Anderson Modelhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The (111) surface of Cu, Ag, and Au is characterized by a band of surface Shockley states with a constant density of states beginning slightly below the Fermi energy. These states as well as bulk states hybridize with magnetic impurities which can be placed above the surface. We calculate the characteristic low-temperature energy scale, the Kondo temperature TK of the impurity Anderson model, as the bottom of the conduction band Ds crosses the Fermi energy ϵF. We find simple power laws TK≃|Ds-ϵF|η, where η depends on the sign of Ds-ϵF, the ratio between surface and bulk hybridizations with the impurity Δs/Δb, and the ratio between on-site and Coulomb energy Ed/U in the model.Fil: Fernández, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Andrade Hoyos, Jhon Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; ArgentinaAmerican Physical Society2017-01-27info: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/11336/67139Fernández, Joaquín; Aligia, Armando Ángel; Roura Bas, Pablo Gines; Andrade Hoyos, Jhon Alejandro; Kondo temperature when the Fermi level is near a step in the conduction density of states; American Physical Society; Physical Review B; 95; 4; 27-1-2017; 045143-1/92469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.045143info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.95.045143info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1611.07913info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:31:14Zoai:ri.conicet.gov.ar:11336/67139instacron: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:34982025-10-15 15:31:14.498CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kondo temperature when the Fermi level is near a step in the conduction density of states
title Kondo temperature when the Fermi level is near a step in the conduction density of states
spellingShingle Kondo temperature when the Fermi level is near a step in the conduction density of states
Fernández, Joaquín
Kondo temperature
Surface Shockley states
Impurity Anderson Model
title_short Kondo temperature when the Fermi level is near a step in the conduction density of states
title_full Kondo temperature when the Fermi level is near a step in the conduction density of states
title_fullStr Kondo temperature when the Fermi level is near a step in the conduction density of states
title_full_unstemmed Kondo temperature when the Fermi level is near a step in the conduction density of states
title_sort Kondo temperature when the Fermi level is near a step in the conduction density of states
dc.creator.none.fl_str_mv Fernández, Joaquín
Aligia, Armando Ángel
Roura Bas, Pablo Gines
Andrade Hoyos, Jhon Alejandro
author Fernández, Joaquín
author_facet Fernández, Joaquín
Aligia, Armando Ángel
Roura Bas, Pablo Gines
Andrade Hoyos, Jhon Alejandro
author_role author
author2 Aligia, Armando Ángel
Roura Bas, Pablo Gines
Andrade Hoyos, Jhon Alejandro
author2_role author
author
author
dc.subject.none.fl_str_mv Kondo temperature
Surface Shockley states
Impurity Anderson Model
topic Kondo temperature
Surface Shockley states
Impurity Anderson Model
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The (111) surface of Cu, Ag, and Au is characterized by a band of surface Shockley states with a constant density of states beginning slightly below the Fermi energy. These states as well as bulk states hybridize with magnetic impurities which can be placed above the surface. We calculate the characteristic low-temperature energy scale, the Kondo temperature TK of the impurity Anderson model, as the bottom of the conduction band Ds crosses the Fermi energy ϵF. We find simple power laws TK≃|Ds-ϵF|η, where η depends on the sign of Ds-ϵF, the ratio between surface and bulk hybridizations with the impurity Δs/Δb, and the ratio between on-site and Coulomb energy Ed/U in the model.
Fil: Fernández, Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Andrade Hoyos, Jhon Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica; Argentina
description The (111) surface of Cu, Ag, and Au is characterized by a band of surface Shockley states with a constant density of states beginning slightly below the Fermi energy. These states as well as bulk states hybridize with magnetic impurities which can be placed above the surface. We calculate the characteristic low-temperature energy scale, the Kondo temperature TK of the impurity Anderson model, as the bottom of the conduction band Ds crosses the Fermi energy ϵF. We find simple power laws TK≃|Ds-ϵF|η, where η depends on the sign of Ds-ϵF, the ratio between surface and bulk hybridizations with the impurity Δs/Δb, and the ratio between on-site and Coulomb energy Ed/U in the model.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-27
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/11336/67139
Fernández, Joaquín; Aligia, Armando Ángel; Roura Bas, Pablo Gines; Andrade Hoyos, Jhon Alejandro; Kondo temperature when the Fermi level is near a step in the conduction density of states; American Physical Society; Physical Review B; 95; 4; 27-1-2017; 045143-1/9
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67139
identifier_str_mv Fernández, Joaquín; Aligia, Armando Ángel; Roura Bas, Pablo Gines; Andrade Hoyos, Jhon Alejandro; Kondo temperature when the Fermi level is near a step in the conduction density of states; American Physical Society; Physical Review B; 95; 4; 27-1-2017; 045143-1/9
2469-9969
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.95.045143
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.95.045143
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1611.07913
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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_ 1846083448569069568
score 13.22299

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