Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons
- Autores
- Normand, B.; Hallberg, Karen Astrid; Aligia, Armando Ángel; Kampf, A. P.
- Año de publicación
- 2006
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an Aharonov-Bohm ring shows sharp dips at certain flux values, determined by the filling, which are a consequence of spin-charge separation in a nanoscopic system. The conductance through such a molecule or nanodevice is related directly to its spectroscopic properties, opening new experimental possibilities for probing the phenomenology of strongly interacting systems. As a further example, for a ring described by the half-filled ionic Hubbard model we show that the weight of the first conductance peak as a function of gate voltage or external flux allows one to identify the topological charge transition between a correlated insulator and a band insulator.
Fil: Normand, B.. University Of Fribourg; Suiza
Fil: Hallberg, Karen Astrid. 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
Fil: Aligia, Armando Ángel. 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. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Kampf, A. P.. Universität Augsburg; Alemania - Materia
-
Aharonov-Bohm Ring
Spin-Charge Separation
Topological Phase Transition - 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:11336/70023
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Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electronsNormand, B.Hallberg, Karen AstridAligia, Armando ÁngelKampf, A. P.Aharonov-Bohm RingSpin-Charge SeparationTopological Phase Transitionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an Aharonov-Bohm ring shows sharp dips at certain flux values, determined by the filling, which are a consequence of spin-charge separation in a nanoscopic system. The conductance through such a molecule or nanodevice is related directly to its spectroscopic properties, opening new experimental possibilities for probing the phenomenology of strongly interacting systems. As a further example, for a ring described by the half-filled ionic Hubbard model we show that the weight of the first conductance peak as a function of gate voltage or external flux allows one to identify the topological charge transition between a correlated insulator and a band insulator.Fil: Normand, B.. University Of Fribourg; SuizaFil: Hallberg, Karen Astrid. 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; ArgentinaFil: Aligia, Armando Ángel. 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. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Kampf, A. P.. Universität Augsburg; AlemaniaWorld Scientific2006-07info: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/11336/70023Normand, B.; Hallberg, Karen Astrid; Aligia, Armando Ángel; Kampf, A. P.; Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons; World Scientific; International Journal of Modern Physics B; 20; 19; 7-2006; 2651-26550217-9792CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.worldscientific.com/doi/abs/10.1142/S0217979206035138info:eu-repo/semantics/altIdentifier/doi/10.1142/S0217979206035138info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:45:31Zoai:ri.conicet.gov.ar:11336/70023instacron: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:34982025-10-15 15:45:32.0CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
title |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
spellingShingle |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons Normand, B. Aharonov-Bohm Ring Spin-Charge Separation Topological Phase Transition |
title_short |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
title_full |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
title_fullStr |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
title_full_unstemmed |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
title_sort |
Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons |
dc.creator.none.fl_str_mv |
Normand, B. Hallberg, Karen Astrid Aligia, Armando Ángel Kampf, A. P. |
author |
Normand, B. |
author_facet |
Normand, B. Hallberg, Karen Astrid Aligia, Armando Ángel Kampf, A. P. |
author_role |
author |
author2 |
Hallberg, Karen Astrid Aligia, Armando Ángel Kampf, A. P. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Aharonov-Bohm Ring Spin-Charge Separation Topological Phase Transition |
topic |
Aharonov-Bohm Ring Spin-Charge Separation Topological Phase Transition |
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 investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an Aharonov-Bohm ring shows sharp dips at certain flux values, determined by the filling, which are a consequence of spin-charge separation in a nanoscopic system. The conductance through such a molecule or nanodevice is related directly to its spectroscopic properties, opening new experimental possibilities for probing the phenomenology of strongly interacting systems. As a further example, for a ring described by the half-filled ionic Hubbard model we show that the weight of the first conductance peak as a function of gate voltage or external flux allows one to identify the topological charge transition between a correlated insulator and a band insulator. Fil: Normand, B.. University Of Fribourg; Suiza Fil: Hallberg, Karen Astrid. 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 Fil: Aligia, Armando Ángel. 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. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina Fil: Kampf, A. P.. Universität Augsburg; Alemania |
description |
We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an Aharonov-Bohm ring shows sharp dips at certain flux values, determined by the filling, which are a consequence of spin-charge separation in a nanoscopic system. The conductance through such a molecule or nanodevice is related directly to its spectroscopic properties, opening new experimental possibilities for probing the phenomenology of strongly interacting systems. As a further example, for a ring described by the half-filled ionic Hubbard model we show that the weight of the first conductance peak as a function of gate voltage or external flux allows one to identify the topological charge transition between a correlated insulator and a band insulator. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-07 |
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/11336/70023 Normand, B.; Hallberg, Karen Astrid; Aligia, Armando Ángel; Kampf, A. P.; Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons; World Scientific; International Journal of Modern Physics B; 20; 19; 7-2006; 2651-2655 0217-9792 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/70023 |
identifier_str_mv |
Normand, B.; Hallberg, Karen Astrid; Aligia, Armando Ángel; Kampf, A. P.; Spin-charge separation and topological phase transitions in Aharonov-Bohm rings of interacting electrons; World Scientific; International Journal of Modern Physics B; 20; 19; 7-2006; 2651-2655 0217-9792 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://www.worldscientific.com/doi/abs/10.1142/S0217979206035138 info:eu-repo/semantics/altIdentifier/doi/10.1142/S0217979206035138 |
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 |
World Scientific |
publisher.none.fl_str_mv |
World Scientific |
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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13.22299 |