Spin fluctuation effects on the conductance through a single Pd atom contact

Autores
Romero, Marcelo Ariel; Gómez Carrillo, Sandra Carolina; Bolcatto, Pablo Guillermo; Goldberg, Edith Catalina
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A controversy about the conductance through single atoms still exists. There are many experiments where values lower than the quantum unity G0 = 2e2/h have been found associated to Kondo regimes with high Kondo temperatures. Specifically in the Pd single atom contact, conductance values close to G0/2 at room temperature have been reported. In this work we propose a theoretical analysis of a break junction of Pd where the charge fluctuation in the single atom contact is limited to the most probable one: d10 a d9. The projected density of states and the characteristics of the electron transport are calculated by using a realistic description of the interacting system. A Kondo regime is found where the conductance values and their dependence on temperature are in good agreement with the experimental trends observed in the conduction of single molecule transistors based on transition metal coordination complexes.
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: Gómez Carrillo, Sandra Carolina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bolcatto, Pablo Guillermo. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina
Fil: Goldberg, Edith Catalina. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Materiales; Argentina
Materia
Equation of Motion Method
Electronic Transport
Keldysh-Green Method
Strong Correlation
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:11336/24539
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spin fluctuation effects on the conductance through a single Pd atom contactRomero, Marcelo ArielGómez Carrillo, Sandra CarolinaBolcatto, Pablo GuillermoGoldberg, Edith CatalinaEquation of Motion MethodElectronic TransportKeldysh-Green MethodStrong Correlationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A controversy about the conductance through single atoms still exists. There are many experiments where values lower than the quantum unity G0 = 2e2/h have been found associated to Kondo regimes with high Kondo temperatures. Specifically in the Pd single atom contact, conductance values close to G0/2 at room temperature have been reported. In this work we propose a theoretical analysis of a break junction of Pd where the charge fluctuation in the single atom contact is limited to the most probable one: d10 a d9. The projected density of states and the characteristics of the electron transport are calculated by using a realistic description of the interacting system. A Kondo regime is found where the conductance values and their dependence on temperature are in good agreement with the experimental trends observed in the conduction of single molecule transistors based on transition metal coordination complexes.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: Gómez Carrillo, Sandra Carolina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bolcatto, Pablo Guillermo. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; ArgentinaFil: Goldberg, Edith Catalina. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Materiales; ArgentinaIOP Publishing2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24539Romero, Marcelo Ariel; Gómez Carrillo, Sandra Carolina; Bolcatto, Pablo Guillermo; Goldberg, Edith Catalina; Spin fluctuation effects on the conductance through a single Pd atom contact; IOP Publishing; Journal of Physics: Condensed Matter; 21; 4-2009; 215602-2156130953-8984CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/21/21/215602info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/21/21/215602info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:05Zoai:ri.conicet.gov.ar:11336/24539instacron: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 09:57:05.655CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin fluctuation effects on the conductance through a single Pd atom contact
title Spin fluctuation effects on the conductance through a single Pd atom contact
spellingShingle Spin fluctuation effects on the conductance through a single Pd atom contact
Romero, Marcelo Ariel
Equation of Motion Method
Electronic Transport
Keldysh-Green Method
Strong Correlation
title_short Spin fluctuation effects on the conductance through a single Pd atom contact
title_full Spin fluctuation effects on the conductance through a single Pd atom contact
title_fullStr Spin fluctuation effects on the conductance through a single Pd atom contact
title_full_unstemmed Spin fluctuation effects on the conductance through a single Pd atom contact
title_sort Spin fluctuation effects on the conductance through a single Pd atom contact
dc.creator.none.fl_str_mv Romero, Marcelo Ariel
Gómez Carrillo, Sandra Carolina
Bolcatto, Pablo Guillermo
Goldberg, Edith Catalina
author Romero, Marcelo Ariel
author_facet Romero, Marcelo Ariel
Gómez Carrillo, Sandra Carolina
Bolcatto, Pablo Guillermo
Goldberg, Edith Catalina
author_role author
author2 Gómez Carrillo, Sandra Carolina
Bolcatto, Pablo Guillermo
Goldberg, Edith Catalina
author2_role author
author
author
dc.subject.none.fl_str_mv Equation of Motion Method
Electronic Transport
Keldysh-Green Method
Strong Correlation
topic Equation of Motion Method
Electronic Transport
Keldysh-Green Method
Strong Correlation
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 controversy about the conductance through single atoms still exists. There are many experiments where values lower than the quantum unity G0 = 2e2/h have been found associated to Kondo regimes with high Kondo temperatures. Specifically in the Pd single atom contact, conductance values close to G0/2 at room temperature have been reported. In this work we propose a theoretical analysis of a break junction of Pd where the charge fluctuation in the single atom contact is limited to the most probable one: d10 a d9. The projected density of states and the characteristics of the electron transport are calculated by using a realistic description of the interacting system. A Kondo regime is found where the conductance values and their dependence on temperature are in good agreement with the experimental trends observed in the conduction of single molecule transistors based on transition metal coordination complexes.
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: Gómez Carrillo, Sandra Carolina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bolcatto, Pablo Guillermo. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina
Fil: Goldberg, Edith Catalina. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Materiales; Argentina
description A controversy about the conductance through single atoms still exists. There are many experiments where values lower than the quantum unity G0 = 2e2/h have been found associated to Kondo regimes with high Kondo temperatures. Specifically in the Pd single atom contact, conductance values close to G0/2 at room temperature have been reported. In this work we propose a theoretical analysis of a break junction of Pd where the charge fluctuation in the single atom contact is limited to the most probable one: d10 a d9. The projected density of states and the characteristics of the electron transport are calculated by using a realistic description of the interacting system. A Kondo regime is found where the conductance values and their dependence on temperature are in good agreement with the experimental trends observed in the conduction of single molecule transistors based on transition metal coordination complexes.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
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/11336/24539
Romero, Marcelo Ariel; Gómez Carrillo, Sandra Carolina; Bolcatto, Pablo Guillermo; Goldberg, Edith Catalina; Spin fluctuation effects on the conductance through a single Pd atom contact; IOP Publishing; Journal of Physics: Condensed Matter; 21; 4-2009; 215602-215613
0953-8984
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24539
identifier_str_mv Romero, Marcelo Ariel; Gómez Carrillo, Sandra Carolina; Bolcatto, Pablo Guillermo; Goldberg, Edith Catalina; Spin fluctuation effects on the conductance through a single Pd atom contact; IOP Publishing; Journal of Physics: Condensed Matter; 21; 4-2009; 215602-215613
0953-8984
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/21/21/215602
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/21/21/215602
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
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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