Enhanced thermoelectric response in the fractional quantum Hall effect

Autores
Roura Bas, Pablo Gines; Arrachea, Liliana del Carmen; Fradkin, Eduardo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the linear thermoelectric response of a quantum dot embedded in a constriction of a quantum Hall bar with fractional filling factors ν=1/m within Laughlin series. We calculate the figure of merit ZT for the maximum efficiency at a fixed temperature difference. We find a significant enhancement of this quantity in the fractional filling in relation to the integer-filling case, which is a direct consequence of the fractionalization of the electron in the fractional quantum Hall state. We present simple theoretical expressions for the Onsager coefficients at low temperatures, which explicitly show that ZT and the Seebeck coefficient increase with m.
Fil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Arrachea, Liliana del Carmen. Freie Universität Berlin; Alemania. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fradkin, Eduardo. University of Illinois at Urbana; Estados Unidos
Materia
Topological
Spin-Hall
Thermoelectric
Quantum
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:11336/98959
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/98959
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Enhanced thermoelectric response in the fractional quantum Hall effectRoura Bas, Pablo GinesArrachea, Liliana del CarmenFradkin, EduardoTopologicalSpin-HallThermoelectricQuantumhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the linear thermoelectric response of a quantum dot embedded in a constriction of a quantum Hall bar with fractional filling factors ν=1/m within Laughlin series. We calculate the figure of merit ZT for the maximum efficiency at a fixed temperature difference. We find a significant enhancement of this quantity in the fractional filling in relation to the integer-filling case, which is a direct consequence of the fractionalization of the electron in the fractional quantum Hall state. We present simple theoretical expressions for the Onsager coefficients at low temperatures, which explicitly show that ZT and the Seebeck coefficient increase with m.Fil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Arrachea, Liliana del Carmen. Freie Universität Berlin; Alemania. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fradkin, Eduardo. University of Illinois at Urbana; Estados UnidosAmerican Physical Society2018-02-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98959Roura Bas, Pablo Gines; Arrachea, Liliana del Carmen; Fradkin, Eduardo; Enhanced thermoelectric response in the fractional quantum Hall effect; American Physical Society; Physical Review B; 97; 8; 12-2-2018; 1-6; 0811042469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.97.081104info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.97.081104info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1711.09721info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:05Zoai:ri.conicet.gov.ar:11336/98959instacron: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:34982025-09-03 09:52:05.26CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Enhanced thermoelectric response in the fractional quantum Hall effect
title Enhanced thermoelectric response in the fractional quantum Hall effect
spellingShingle Enhanced thermoelectric response in the fractional quantum Hall effect
Roura Bas, Pablo Gines
Topological
Spin-Hall
Thermoelectric
Quantum
title_short Enhanced thermoelectric response in the fractional quantum Hall effect
title_full Enhanced thermoelectric response in the fractional quantum Hall effect
title_fullStr Enhanced thermoelectric response in the fractional quantum Hall effect
title_full_unstemmed Enhanced thermoelectric response in the fractional quantum Hall effect
title_sort Enhanced thermoelectric response in the fractional quantum Hall effect
dc.creator.none.fl_str_mv Roura Bas, Pablo Gines
Arrachea, Liliana del Carmen
Fradkin, Eduardo
author Roura Bas, Pablo Gines
author_facet Roura Bas, Pablo Gines
Arrachea, Liliana del Carmen
Fradkin, Eduardo
author_role author
author2 Arrachea, Liliana del Carmen
Fradkin, Eduardo
author2_role author
author
dc.subject.none.fl_str_mv Topological
Spin-Hall
Thermoelectric
Quantum
topic Topological
Spin-Hall
Thermoelectric
Quantum
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 study the linear thermoelectric response of a quantum dot embedded in a constriction of a quantum Hall bar with fractional filling factors ν=1/m within Laughlin series. We calculate the figure of merit ZT for the maximum efficiency at a fixed temperature difference. We find a significant enhancement of this quantity in the fractional filling in relation to the integer-filling case, which is a direct consequence of the fractionalization of the electron in the fractional quantum Hall state. We present simple theoretical expressions for the Onsager coefficients at low temperatures, which explicitly show that ZT and the Seebeck coefficient increase with m.
Fil: Roura Bas, Pablo Gines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Arrachea, Liliana del Carmen. Freie Universität Berlin; Alemania. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fradkin, Eduardo. University of Illinois at Urbana; Estados Unidos
description We study the linear thermoelectric response of a quantum dot embedded in a constriction of a quantum Hall bar with fractional filling factors ν=1/m within Laughlin series. We calculate the figure of merit ZT for the maximum efficiency at a fixed temperature difference. We find a significant enhancement of this quantity in the fractional filling in relation to the integer-filling case, which is a direct consequence of the fractionalization of the electron in the fractional quantum Hall state. We present simple theoretical expressions for the Onsager coefficients at low temperatures, which explicitly show that ZT and the Seebeck coefficient increase with m.
publishDate 2018
dc.date.none.fl_str_mv 2018-02-12
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/11336/98959
Roura Bas, Pablo Gines; Arrachea, Liliana del Carmen; Fradkin, Eduardo; Enhanced thermoelectric response in the fractional quantum Hall effect; American Physical Society; Physical Review B; 97; 8; 12-2-2018; 1-6; 081104
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98959
identifier_str_mv Roura Bas, Pablo Gines; Arrachea, Liliana del Carmen; Fradkin, Eduardo; Enhanced thermoelectric response in the fractional quantum Hall effect; American Physical Society; Physical Review B; 97; 8; 12-2-2018; 1-6; 081104
2469-9969
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.aps.org/doi/10.1103/PhysRevB.97.081104
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.97.081104
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1711.09721
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
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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 13.13397

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