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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/94228
Ver los metadatos del registro completo
| id |
CONICETDig_6423da6d64691c800c2a10f8bc4cd43a |
|---|---|
| oai_identifier_str |
oai:ri.conicet.gov.ar:11336/94228 |
| network_acronym_str |
CONICETDig |
| repository_id_str |
3498 |
| network_name_str |
CONICET Digital (CONICET) |
| spelling |
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 Técnicas2025-10-22T11:07:17Zoai: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:34982025-10-22 11:07:17.474CONICET 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 |
| 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 |
| _version_ |
1846781385077948416 |
| score |
12.982451 |