Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory

Autores
Fernández, Joaquín; Moro Lagares, María; Serrate, D.; Aligia, Armando Ángel
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We show that the density of surface Shockley states of Ag(111) probed by the differential conductance G(V)=dI/dV by a scanning-tunneling microscope (STM) can be enhanced significantly at certain energies and positions introducing simple arrays of Co or Ag atoms on the surface, in contrast to other noble-metal surfaces. Specifically we have studied resonators consisting of two parallel walls of five atoms deposited on the clean Ag(111) surface. A simple model in which the effect of the adatoms is taken into account by an attractive local potential and a small hybridization between surface and bulk at the position of the adatoms explains the main features of the observed G(V) and allows us to extract the proportion of surface and bulk states sensed by the STM tip. These results might be relevant to engineer the surface spectral density of states, to study the effects of surface states on the Kondo effect, and to separate bulk and surface contributions in STM studies of topological surface states.
Fil: Fernández, Joaquín. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Moro Lagares, María. Universidad de Zaragoza; España. Czech Academy of Sciences; República Checa. Palacky University; República Checa
Fil: Serrate, D.. Universidad de Zaragoza; España
Fil: Aligia, Armando Ángel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Materia
scanning-tunneling microscope
differential conductance
resonators
noble-metal surfaces
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:11336/125943
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theoryFernández, JoaquínMoro Lagares, MaríaSerrate, D.Aligia, Armando Ángelscanning-tunneling microscopedifferential conductanceresonatorsnoble-metal surfaceshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We show that the density of surface Shockley states of Ag(111) probed by the differential conductance G(V)=dI/dV by a scanning-tunneling microscope (STM) can be enhanced significantly at certain energies and positions introducing simple arrays of Co or Ag atoms on the surface, in contrast to other noble-metal surfaces. Specifically we have studied resonators consisting of two parallel walls of five atoms deposited on the clean Ag(111) surface. A simple model in which the effect of the adatoms is taken into account by an attractive local potential and a small hybridization between surface and bulk at the position of the adatoms explains the main features of the observed G(V) and allows us to extract the proportion of surface and bulk states sensed by the STM tip. These results might be relevant to engineer the surface spectral density of states, to study the effects of surface states on the Kondo effect, and to separate bulk and surface contributions in STM studies of topological surface states.Fil: Fernández, Joaquín. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Moro Lagares, María. Universidad de Zaragoza; España. Czech Academy of Sciences; República Checa. Palacky University; República ChecaFil: Serrate, D.. Universidad de Zaragoza; EspañaFil: Aligia, Armando Ángel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaAmerican Physical Society2016-08-08info: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/11336/125943Fernández, Joaquín; Moro Lagares, María; Serrate, D.; Aligia, Armando Ángel; Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory; American Physical Society; Physical Review B; 94; 7; 8-8-2016; 1-81098-01212469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.075408info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.94.075408info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:03:36Zoai:ri.conicet.gov.ar:11336/125943instacron: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 10:03:37.046CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
title Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
spellingShingle Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
Fernández, Joaquín
scanning-tunneling microscope
differential conductance
resonators
noble-metal surfaces
title_short Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
title_full Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
title_fullStr Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
title_full_unstemmed Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
title_sort Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory
dc.creator.none.fl_str_mv Fernández, Joaquín
Moro Lagares, María
Serrate, D.
Aligia, Armando Ángel
author Fernández, Joaquín
author_facet Fernández, Joaquín
Moro Lagares, María
Serrate, D.
Aligia, Armando Ángel
author_role author
author2 Moro Lagares, María
Serrate, D.
Aligia, Armando Ángel
author2_role author
author
author
dc.subject.none.fl_str_mv scanning-tunneling microscope
differential conductance
resonators
noble-metal surfaces
topic scanning-tunneling microscope
differential conductance
resonators
noble-metal surfaces
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 show that the density of surface Shockley states of Ag(111) probed by the differential conductance G(V)=dI/dV by a scanning-tunneling microscope (STM) can be enhanced significantly at certain energies and positions introducing simple arrays of Co or Ag atoms on the surface, in contrast to other noble-metal surfaces. Specifically we have studied resonators consisting of two parallel walls of five atoms deposited on the clean Ag(111) surface. A simple model in which the effect of the adatoms is taken into account by an attractive local potential and a small hybridization between surface and bulk at the position of the adatoms explains the main features of the observed G(V) and allows us to extract the proportion of surface and bulk states sensed by the STM tip. These results might be relevant to engineer the surface spectral density of states, to study the effects of surface states on the Kondo effect, and to separate bulk and surface contributions in STM studies of topological surface states.
Fil: Fernández, Joaquín. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Moro Lagares, María. Universidad de Zaragoza; España. Czech Academy of Sciences; República Checa. Palacky University; República Checa
Fil: Serrate, D.. Universidad de Zaragoza; España
Fil: Aligia, Armando Ángel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
description We show that the density of surface Shockley states of Ag(111) probed by the differential conductance G(V)=dI/dV by a scanning-tunneling microscope (STM) can be enhanced significantly at certain energies and positions introducing simple arrays of Co or Ag atoms on the surface, in contrast to other noble-metal surfaces. Specifically we have studied resonators consisting of two parallel walls of five atoms deposited on the clean Ag(111) surface. A simple model in which the effect of the adatoms is taken into account by an attractive local potential and a small hybridization between surface and bulk at the position of the adatoms explains the main features of the observed G(V) and allows us to extract the proportion of surface and bulk states sensed by the STM tip. These results might be relevant to engineer the surface spectral density of states, to study the effects of surface states on the Kondo effect, and to separate bulk and surface contributions in STM studies of topological surface states.
publishDate 2016
dc.date.none.fl_str_mv 2016-08-08
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/11336/125943
Fernández, Joaquín; Moro Lagares, María; Serrate, D.; Aligia, Armando Ángel; Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory; American Physical Society; Physical Review B; 94; 7; 8-8-2016; 1-8
1098-0121
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125943
identifier_str_mv Fernández, Joaquín; Moro Lagares, María; Serrate, D.; Aligia, Armando Ángel; Manipulation of the surface density of states of Ag(111) by means of resonators: Experiment and theory; American Physical Society; Physical Review B; 94; 7; 8-8-2016; 1-8
1098-0121
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.94.075408
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.94.075408
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 13.070432

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