Spin filters with Fano dots
- Autores
- Torio, Maria Eugenia; Hallberg, Karen Astrid; Flach, S.; Miroshnichenko, A. E.; Titov, M.
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We compute the zero bias conductance of electrons through a single ballistic channel weakly coupled to a side quantum dot with Coulomb interaction. In contrast to the standard setup which is designed to measure the transport through the dot, the channel conductance reveals Coulomb blockade dips rather then peaks due to the Fano-like backscattering. At zero temperature the Kondo effect leads to the formation of broad valleys of small conductance corresponding to an odd number of electrons on the dot. By applying a magnetic field in the dot region we find two dips corresponding to a total suppression in the conductance of spins up and down separated by an energy of the order of the Coulomb interaction. This provides a possibility of a perfect spin filter.
Fil: Torio, Maria Eugenia. 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: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Flach, S.. Max Planck Institute For The Physics Of Complex Systems; Alemania
Fil: Miroshnichenko, A. E.. Max Planck Institute For The Physics Of Complex Systems; Alemania
Fil: Titov, M.. Max Planck Institute For The Physics Of Complex Systems; Alemania - Materia
-
Spin
Filters - 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:11336/70020
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Spin filters with Fano dotsTorio, Maria EugeniaHallberg, Karen AstridFlach, S.Miroshnichenko, A. E.Titov, M.SpinFiltershttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We compute the zero bias conductance of electrons through a single ballistic channel weakly coupled to a side quantum dot with Coulomb interaction. In contrast to the standard setup which is designed to measure the transport through the dot, the channel conductance reveals Coulomb blockade dips rather then peaks due to the Fano-like backscattering. At zero temperature the Kondo effect leads to the formation of broad valleys of small conductance corresponding to an odd number of electrons on the dot. By applying a magnetic field in the dot region we find two dips corresponding to a total suppression in the conductance of spins up and down separated by an energy of the order of the Coulomb interaction. This provides a possibility of a perfect spin filter.Fil: Torio, Maria Eugenia. 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: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Flach, S.. Max Planck Institute For The Physics Of Complex Systems; AlemaniaFil: Miroshnichenko, A. E.. Max Planck Institute For The Physics Of Complex Systems; AlemaniaFil: Titov, M.. Max Planck Institute For The Physics Of Complex Systems; AlemaniaSpringer2004-02info: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/11336/70020Torio, Maria Eugenia; Hallberg, Karen Astrid; Flach, S.; Miroshnichenko, A. E.; Titov, M.; Spin filters with Fano dots; Springer; European Physical Journal B - Condensed Matter; 37; 3; 2-2004; 399-4031434-6028CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140/epjb/e2004-00072-6info:eu-repo/semantics/altIdentifier/doi/10.1140/epjb/e2004-00072-6info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/cond-mat/0401552info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:50Zoai:ri.conicet.gov.ar:11336/70020instacron: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 09:37:50.351CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Spin filters with Fano dots |
title |
Spin filters with Fano dots |
spellingShingle |
Spin filters with Fano dots Torio, Maria Eugenia Spin Filters |
title_short |
Spin filters with Fano dots |
title_full |
Spin filters with Fano dots |
title_fullStr |
Spin filters with Fano dots |
title_full_unstemmed |
Spin filters with Fano dots |
title_sort |
Spin filters with Fano dots |
dc.creator.none.fl_str_mv |
Torio, Maria Eugenia Hallberg, Karen Astrid Flach, S. Miroshnichenko, A. E. Titov, M. |
author |
Torio, Maria Eugenia |
author_facet |
Torio, Maria Eugenia Hallberg, Karen Astrid Flach, S. Miroshnichenko, A. E. Titov, M. |
author_role |
author |
author2 |
Hallberg, Karen Astrid Flach, S. Miroshnichenko, A. E. Titov, M. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Spin Filters |
topic |
Spin Filters |
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 compute the zero bias conductance of electrons through a single ballistic channel weakly coupled to a side quantum dot with Coulomb interaction. In contrast to the standard setup which is designed to measure the transport through the dot, the channel conductance reveals Coulomb blockade dips rather then peaks due to the Fano-like backscattering. At zero temperature the Kondo effect leads to the formation of broad valleys of small conductance corresponding to an odd number of electrons on the dot. By applying a magnetic field in the dot region we find two dips corresponding to a total suppression in the conductance of spins up and down separated by an energy of the order of the Coulomb interaction. This provides a possibility of a perfect spin filter. Fil: Torio, Maria Eugenia. 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: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Flach, S.. Max Planck Institute For The Physics Of Complex Systems; Alemania Fil: Miroshnichenko, A. E.. Max Planck Institute For The Physics Of Complex Systems; Alemania Fil: Titov, M.. Max Planck Institute For The Physics Of Complex Systems; Alemania |
description |
We compute the zero bias conductance of electrons through a single ballistic channel weakly coupled to a side quantum dot with Coulomb interaction. In contrast to the standard setup which is designed to measure the transport through the dot, the channel conductance reveals Coulomb blockade dips rather then peaks due to the Fano-like backscattering. At zero temperature the Kondo effect leads to the formation of broad valleys of small conductance corresponding to an odd number of electrons on the dot. By applying a magnetic field in the dot region we find two dips corresponding to a total suppression in the conductance of spins up and down separated by an energy of the order of the Coulomb interaction. This provides a possibility of a perfect spin filter. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-02 |
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/11336/70020 Torio, Maria Eugenia; Hallberg, Karen Astrid; Flach, S.; Miroshnichenko, A. E.; Titov, M.; Spin filters with Fano dots; Springer; European Physical Journal B - Condensed Matter; 37; 3; 2-2004; 399-403 1434-6028 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/70020 |
identifier_str_mv |
Torio, Maria Eugenia; Hallberg, Karen Astrid; Flach, S.; Miroshnichenko, A. E.; Titov, M.; Spin filters with Fano dots; Springer; European Physical Journal B - Condensed Matter; 37; 3; 2-2004; 399-403 1434-6028 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140/epjb/e2004-00072-6 info:eu-repo/semantics/altIdentifier/doi/10.1140/epjb/e2004-00072-6 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/cond-mat/0401552 |
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 |
Springer |
publisher.none.fl_str_mv |
Springer |
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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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