From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect
- Autores
- Choi, Deung Jang; Abufager, Paula Natalia; Limot, Laurent; Lorente, Nicolás
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin scattering off the Co atom, which is assigned to a Kondo effect. The ZBA exhibits a characteristic asymmetric lineshape when electrons tunnel between tip and sample, while upon the tip-Co contact it symmetrizes and broadens. Through density functional theory calculations and the non-equilibrium non-crossing approximation, we show that the lineshape broadening is mainly a consequence of the additional coupling to the tip, while non-equilibrium effects only modify the large-bias tails of the ZBA.
Fil: Choi, Deung Jang. Université de Strasbourg; Francia
Fil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Limot, Laurent. Université de Strasbourg; Francia
Fil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Universidad del País Vasco. Facultad de Química Aplicada - Donostia - San Sebastián; España - Materia
-
Kondo
DFT
STM - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/94228
Ver los metadatos del registro completo
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From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effectChoi, Deung JangAbufager, Paula NataliaLimot, LaurentLorente, NicolásKondoDFTSTMhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin scattering off the Co atom, which is assigned to a Kondo effect. The ZBA exhibits a characteristic asymmetric lineshape when electrons tunnel between tip and sample, while upon the tip-Co contact it symmetrizes and broadens. Through density functional theory calculations and the non-equilibrium non-crossing approximation, we show that the lineshape broadening is mainly a consequence of the additional coupling to the tip, while non-equilibrium effects only modify the large-bias tails of the ZBA.Fil: Choi, Deung Jang. Université de Strasbourg; FranciaFil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Limot, Laurent. Université de Strasbourg; FranciaFil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Universidad del País Vasco. Facultad de Química Aplicada - Donostia - San Sebastián; EspañaAmerican Institute of Physics2017-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94228Choi, Deung Jang; Abufager, Paula Natalia; Limot, Laurent; Lorente, Nicolás; From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect; American Institute of Physics; Journal of Chemical Physics; 146; 9; 3-2017; 1-9; 0923090021-9606CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.4972874info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4972874info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:56Zoai:ri.conicet.gov.ar:11336/94228instacron: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 09:38:57.205CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
title |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
spellingShingle |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect Choi, Deung Jang Kondo DFT STM |
title_short |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
title_full |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
title_fullStr |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
title_full_unstemmed |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
title_sort |
From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect |
dc.creator.none.fl_str_mv |
Choi, Deung Jang Abufager, Paula Natalia Limot, Laurent Lorente, Nicolás |
author |
Choi, Deung Jang |
author_facet |
Choi, Deung Jang Abufager, Paula Natalia Limot, Laurent Lorente, Nicolás |
author_role |
author |
author2 |
Abufager, Paula Natalia Limot, Laurent Lorente, Nicolás |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Kondo DFT STM |
topic |
Kondo DFT STM |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin scattering off the Co atom, which is assigned to a Kondo effect. The ZBA exhibits a characteristic asymmetric lineshape when electrons tunnel between tip and sample, while upon the tip-Co contact it symmetrizes and broadens. Through density functional theory calculations and the non-equilibrium non-crossing approximation, we show that the lineshape broadening is mainly a consequence of the additional coupling to the tip, while non-equilibrium effects only modify the large-bias tails of the ZBA. Fil: Choi, Deung Jang. Université de Strasbourg; Francia Fil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Limot, Laurent. Université de Strasbourg; Francia Fil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Universidad del País Vasco. Facultad de Química Aplicada - Donostia - San Sebastián; España |
description |
A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin scattering off the Co atom, which is assigned to a Kondo effect. The ZBA exhibits a characteristic asymmetric lineshape when electrons tunnel between tip and sample, while upon the tip-Co contact it symmetrizes and broadens. Through density functional theory calculations and the non-equilibrium non-crossing approximation, we show that the lineshape broadening is mainly a consequence of the additional coupling to the tip, while non-equilibrium effects only modify the large-bias tails of the ZBA. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03 |
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/11336/94228 Choi, Deung Jang; Abufager, Paula Natalia; Limot, Laurent; Lorente, Nicolás; From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect; American Institute of Physics; Journal of Chemical Physics; 146; 9; 3-2017; 1-9; 092309 0021-9606 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/94228 |
identifier_str_mv |
Choi, Deung Jang; Abufager, Paula Natalia; Limot, Laurent; Lorente, Nicolás; From tunneling to contact in a magnetic atom: The non-equilibrium Kondo effect; American Institute of Physics; Journal of Chemical Physics; 146; 9; 3-2017; 1-9; 092309 0021-9606 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4972874 info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4972874 |
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 |
American Institute of Physics |
publisher.none.fl_str_mv |
American Institute of Physics |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613231762472960 |
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13.070432 |