Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states

Autores
Romero, Marcelo Ariel; Aligia, Armando Ángel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We consider a Hubbard-Anderson model which describes localized orbitals in five different sites hybridized both among themselves and with a continuum of extended states. A square planar geometry with an atom at the center is used to represent TBrPP-Co molecules. When the renormalized effective hopping between sites is small compared with a Kondo energy scale determined by the sitecontinuum hybridization, the system can be described as a set of independent Kondo resonances, rather than molecular states. We study the crossover between both regimes and analyze the spectral density of conduction electrons as a function of position. The results are in qualitative agreement with measurements of the differential conductance in a system with TBrPP-Co molecules adsorbed on a Cu(111) surface.
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Aligia, Armando Ángel. Comision Nacional de Energia Atomica. Fundación Jose A. Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
scanning tunneling microscopy
adsorbed molecules
localized atomic states
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:11336/21701
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/21701
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network_name_str CONICET Digital (CONICET)
spelling Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic statesRomero, Marcelo ArielAligia, Armando Ángelscanning tunneling microscopyadsorbed moleculeslocalized atomic stateshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We consider a Hubbard-Anderson model which describes localized orbitals in five different sites hybridized both among themselves and with a continuum of extended states. A square planar geometry with an atom at the center is used to represent TBrPP-Co molecules. When the renormalized effective hopping between sites is small compared with a Kondo energy scale determined by the sitecontinuum hybridization, the system can be described as a set of independent Kondo resonances, rather than molecular states. We study the crossover between both regimes and analyze the spectral density of conduction electrons as a function of position. The results are in qualitative agreement with measurements of the differential conductance in a system with TBrPP-Co molecules adsorbed on a Cu(111) surface.Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Aligia, Armando Ángel. Comision Nacional de Energia Atomica. Fundación Jose A. Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Physical Society2011-04info: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/11336/21701Romero, Marcelo Ariel; Aligia, Armando Ángel; Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 83; 15; 4-2011; 155-4231098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.83.155423info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.155423info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:39:26Zoai:ri.conicet.gov.ar:11336/21701instacron: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:34982025-11-12 09:39:26.668CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
title Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
spellingShingle Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
Romero, Marcelo Ariel
scanning tunneling microscopy
adsorbed molecules
localized atomic states
title_short Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
title_full Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
title_fullStr Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
title_full_unstemmed Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
title_sort Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states
dc.creator.none.fl_str_mv Romero, Marcelo Ariel
Aligia, Armando Ángel
author Romero, Marcelo Ariel
author_facet Romero, Marcelo Ariel
Aligia, Armando Ángel
author_role author
author2 Aligia, Armando Ángel
author2_role author
dc.subject.none.fl_str_mv scanning tunneling microscopy
adsorbed molecules
localized atomic states
topic scanning tunneling microscopy
adsorbed molecules
localized atomic states
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 consider a Hubbard-Anderson model which describes localized orbitals in five different sites hybridized both among themselves and with a continuum of extended states. A square planar geometry with an atom at the center is used to represent TBrPP-Co molecules. When the renormalized effective hopping between sites is small compared with a Kondo energy scale determined by the sitecontinuum hybridization, the system can be described as a set of independent Kondo resonances, rather than molecular states. We study the crossover between both regimes and analyze the spectral density of conduction electrons as a function of position. The results are in qualitative agreement with measurements of the differential conductance in a system with TBrPP-Co molecules adsorbed on a Cu(111) surface.
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Aligia, Armando Ángel. Comision Nacional de Energia Atomica. Fundación Jose A. Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We consider a Hubbard-Anderson model which describes localized orbitals in five different sites hybridized both among themselves and with a continuum of extended states. A square planar geometry with an atom at the center is used to represent TBrPP-Co molecules. When the renormalized effective hopping between sites is small compared with a Kondo energy scale determined by the sitecontinuum hybridization, the system can be described as a set of independent Kondo resonances, rather than molecular states. We study the crossover between both regimes and analyze the spectral density of conduction electrons as a function of position. The results are in qualitative agreement with measurements of the differential conductance in a system with TBrPP-Co molecules adsorbed on a Cu(111) surface.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
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/11336/21701
Romero, Marcelo Ariel; Aligia, Armando Ángel; Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 83; 15; 4-2011; 155-423
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21701
identifier_str_mv Romero, Marcelo Ariel; Aligia, Armando Ángel; Theory of scanning tunneling microscopy of adsorbed molecules on metallic surfaces for nearly localized atomic states; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 83; 15; 4-2011; 155-423
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.83.155423
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.155423
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
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 12.976206

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