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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/70023

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network_name_str CONICET Digital (CONICET)
spelling 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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