Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit

Autores
Lobos, Alejandro Martin; Romero, Marcelo Ariel; Aligia, Armando Angel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We describe the evolution of the SU(4) Kondo effect as the number of magnetic centers increases from one impurity to the two-dimensional (2D) lattice. We derive a Hubbard-Anderson model which describes a 2D array of atoms or molecules with twofold orbital degeneracy, acting as magnetic impurities and interacting with a metallic host. We calculate the differential conductance, observed typically in experiments of scanning tunneling spectroscopy, for different arrangements of impurities on a metallic surface: a single impurity, a periodic square lattice, and several sites of a rectangular cluster. Our results point towards the crucial importance of the orbital degeneracy and agree well with recent experiments in different systems of iron(II) phtalocyanine molecules deposited on top of Au(111) [N. Tsukahara et al., Phys. Rev. Lett. 106, 187201 (2011)], indicating an experimental realization of an artificial 2D SU(4) Kondo-lattice system.
Fil: Lobos, Alejandro Martin. University of Maryland. Department of Physics. Joint Quantum Institute and Condensed Matter Theory Center; Estados Unidos
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina
Fil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Materia
Kondo Effect
Su4) Symmetry
Scanning Tunneling Microscopy
Fe Phtalocianine
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:11336/4415
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limitLobos, Alejandro MartinRomero, Marcelo ArielAligia, Armando AngelKondo EffectSu4) SymmetryScanning Tunneling MicroscopyFe Phtalocianinehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We describe the evolution of the SU(4) Kondo effect as the number of magnetic centers increases from one impurity to the two-dimensional (2D) lattice. We derive a Hubbard-Anderson model which describes a 2D array of atoms or molecules with twofold orbital degeneracy, acting as magnetic impurities and interacting with a metallic host. We calculate the differential conductance, observed typically in experiments of scanning tunneling spectroscopy, for different arrangements of impurities on a metallic surface: a single impurity, a periodic square lattice, and several sites of a rectangular cluster. Our results point towards the crucial importance of the orbital degeneracy and agree well with recent experiments in different systems of iron(II) phtalocyanine molecules deposited on top of Au(111) [N. Tsukahara et al., Phys. Rev. Lett. 106, 187201 (2011)], indicating an experimental realization of an artificial 2D SU(4) Kondo-lattice system.Fil: Lobos, Alejandro Martin. University of Maryland. Department of Physics. Joint Quantum Institute and Condensed Matter Theory Center; Estados UnidosFil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; ArgentinaFil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaAmerican Physical Society2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4415Lobos, Alejandro Martin; Romero, Marcelo Ariel; Aligia, Armando Angel; Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit; American Physical Society; Physical Review B; 89; 12; 3-2014; 121406-1214062469-9969enginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.121406info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.121406info:eu-repo/semantics/altIdentifier/issn/2469-9969info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:54Zoai:ri.conicet.gov.ar:11336/4415instacron: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:34982025-09-29 10:25:54.638CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
title Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
spellingShingle Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
Lobos, Alejandro Martin
Kondo Effect
Su4) Symmetry
Scanning Tunneling Microscopy
Fe Phtalocianine
title_short Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
title_full Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
title_fullStr Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
title_full_unstemmed Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
title_sort Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit
dc.creator.none.fl_str_mv Lobos, Alejandro Martin
Romero, Marcelo Ariel
Aligia, Armando Angel
author Lobos, Alejandro Martin
author_facet Lobos, Alejandro Martin
Romero, Marcelo Ariel
Aligia, Armando Angel
author_role author
author2 Romero, Marcelo Ariel
Aligia, Armando Angel
author2_role author
author
dc.subject.none.fl_str_mv Kondo Effect
Su4) Symmetry
Scanning Tunneling Microscopy
Fe Phtalocianine
topic Kondo Effect
Su4) Symmetry
Scanning Tunneling Microscopy
Fe Phtalocianine
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 describe the evolution of the SU(4) Kondo effect as the number of magnetic centers increases from one impurity to the two-dimensional (2D) lattice. We derive a Hubbard-Anderson model which describes a 2D array of atoms or molecules with twofold orbital degeneracy, acting as magnetic impurities and interacting with a metallic host. We calculate the differential conductance, observed typically in experiments of scanning tunneling spectroscopy, for different arrangements of impurities on a metallic surface: a single impurity, a periodic square lattice, and several sites of a rectangular cluster. Our results point towards the crucial importance of the orbital degeneracy and agree well with recent experiments in different systems of iron(II) phtalocyanine molecules deposited on top of Au(111) [N. Tsukahara et al., Phys. Rev. Lett. 106, 187201 (2011)], indicating an experimental realization of an artificial 2D SU(4) Kondo-lattice system.
Fil: Lobos, Alejandro Martin. University of Maryland. Department of Physics. Joint Quantum Institute and Condensed Matter Theory Center; Estados Unidos
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina
Fil: Aligia, Armando Angel. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
description We describe the evolution of the SU(4) Kondo effect as the number of magnetic centers increases from one impurity to the two-dimensional (2D) lattice. We derive a Hubbard-Anderson model which describes a 2D array of atoms or molecules with twofold orbital degeneracy, acting as magnetic impurities and interacting with a metallic host. We calculate the differential conductance, observed typically in experiments of scanning tunneling spectroscopy, for different arrangements of impurities on a metallic surface: a single impurity, a periodic square lattice, and several sites of a rectangular cluster. Our results point towards the crucial importance of the orbital degeneracy and agree well with recent experiments in different systems of iron(II) phtalocyanine molecules deposited on top of Au(111) [N. Tsukahara et al., Phys. Rev. Lett. 106, 187201 (2011)], indicating an experimental realization of an artificial 2D SU(4) Kondo-lattice system.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
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/11336/4415
Lobos, Alejandro Martin; Romero, Marcelo Ariel; Aligia, Armando Angel; Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit; American Physical Society; Physical Review B; 89; 12; 3-2014; 121406-121406
2469-9969
url http://hdl.handle.net/11336/4415
identifier_str_mv Lobos, Alejandro Martin; Romero, Marcelo Ariel; Aligia, Armando Angel; Spectral evolution of the SU(4) Kondo effect from the single impurity to the two-dimensional limit; American Physical Society; Physical Review B; 89; 12; 3-2014; 121406-121406
2469-9969
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.89.121406
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.121406
info:eu-repo/semantics/altIdentifier/issn/2469-9969
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
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 13.070432

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