Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance

Autores
Goldberg, Edith Catalina; Flores, F.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The interaction between a single magnetic atom and the metal environment (including a magnetic field) is analyzed by introducing an ionic Hamiltonian combined with an effective crystal-field term, and by using a Green-function equation of motion method. This approach describes the inelastic electron tunneling spectroscopy and the Kondo resonances as due to atomic spin fluctuations associated with electron co-tunneling processes between the leads and the atom. We analyze in the case of Fe on CuN the possible spin fluctuations between states with S = 2 and 3/2 or 5/2 and conclude that the experimentally found asymmetries in the conductance with respect to the applied bias, and its marked structures, are well explained by the 2↔3/2 spin fluctuations. The case of Co is also considered and shown to present, in contrast with Fe, a resonance at the Fermi energy corresponding to a Kondo temperature of 6 K.
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Flores, F.. Universidad Autónoma de Madrid; España
Materia
Cotunneling
Spin Anisotropy
Magnetic Atoms
Ionic Hamiltonian
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:11336/6547
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/6547
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonanceGoldberg, Edith CatalinaFlores, F.CotunnelingSpin AnisotropyMagnetic AtomsIonic Hamiltonianhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The interaction between a single magnetic atom and the metal environment (including a magnetic field) is analyzed by introducing an ionic Hamiltonian combined with an effective crystal-field term, and by using a Green-function equation of motion method. This approach describes the inelastic electron tunneling spectroscopy and the Kondo resonances as due to atomic spin fluctuations associated with electron co-tunneling processes between the leads and the atom. We analyze in the case of Fe on CuN the possible spin fluctuations between states with S = 2 and 3/2 or 5/2 and conclude that the experimentally found asymmetries in the conductance with respect to the applied bias, and its marked structures, are well explained by the 2↔3/2 spin fluctuations. The case of Co is also considered and shown to present, in contrast with Fe, a resonance at the Fermi energy corresponding to a Kondo temperature of 6 K.Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Flores, F.. Universidad Autónoma de Madrid; EspañaIOP Publishing2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6547Goldberg, Edith Catalina; Flores, F.; Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance; IOP Publishing; Journal of Physics: Condensed Matter; 25; 22; 4-2013; 225001-2250010953-8984enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/25/22/225001/metainfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/25/22/225001info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:31:50Zoai:ri.conicet.gov.ar:11336/6547instacron: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:34982025-10-29 12:31:51.21CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
title Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
spellingShingle Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
Goldberg, Edith Catalina
Cotunneling
Spin Anisotropy
Magnetic Atoms
Ionic Hamiltonian
title_short Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
title_full Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
title_fullStr Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
title_full_unstemmed Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
title_sort Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance
dc.creator.none.fl_str_mv Goldberg, Edith Catalina
Flores, F.
author Goldberg, Edith Catalina
author_facet Goldberg, Edith Catalina
Flores, F.
author_role author
author2 Flores, F.
author2_role author
dc.subject.none.fl_str_mv Cotunneling
Spin Anisotropy
Magnetic Atoms
Ionic Hamiltonian
topic Cotunneling
Spin Anisotropy
Magnetic Atoms
Ionic Hamiltonian
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 interaction between a single magnetic atom and the metal environment (including a magnetic field) is analyzed by introducing an ionic Hamiltonian combined with an effective crystal-field term, and by using a Green-function equation of motion method. This approach describes the inelastic electron tunneling spectroscopy and the Kondo resonances as due to atomic spin fluctuations associated with electron co-tunneling processes between the leads and the atom. We analyze in the case of Fe on CuN the possible spin fluctuations between states with S = 2 and 3/2 or 5/2 and conclude that the experimentally found asymmetries in the conductance with respect to the applied bias, and its marked structures, are well explained by the 2↔3/2 spin fluctuations. The case of Co is also considered and shown to present, in contrast with Fe, a resonance at the Fermi energy corresponding to a Kondo temperature of 6 K.
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Flores, F.. Universidad Autónoma de Madrid; España
description The interaction between a single magnetic atom and the metal environment (including a magnetic field) is analyzed by introducing an ionic Hamiltonian combined with an effective crystal-field term, and by using a Green-function equation of motion method. This approach describes the inelastic electron tunneling spectroscopy and the Kondo resonances as due to atomic spin fluctuations associated with electron co-tunneling processes between the leads and the atom. We analyze in the case of Fe on CuN the possible spin fluctuations between states with S = 2 and 3/2 or 5/2 and conclude that the experimentally found asymmetries in the conductance with respect to the applied bias, and its marked structures, are well explained by the 2↔3/2 spin fluctuations. The case of Co is also considered and shown to present, in contrast with Fe, a resonance at the Fermi energy corresponding to a Kondo temperature of 6 K.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/6547
Goldberg, Edith Catalina; Flores, F.; Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance; IOP Publishing; Journal of Physics: Condensed Matter; 25; 22; 4-2013; 225001-225001
0953-8984
url http://hdl.handle.net/11336/6547
identifier_str_mv Goldberg, Edith Catalina; Flores, F.; Inelastic tunneling spectroscopy for magnetic atoms and the Kondo resonance; IOP Publishing; Journal of Physics: Condensed Matter; 25; 22; 4-2013; 225001-225001
0953-8984
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/25/22/225001/meta
info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/25/22/225001
info:eu-repo/semantics/altIdentifier/doi/
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.10058

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