Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning

Autores
Casas, Oscar E.; Arrachea, Liliana del Carmen; Herrera, William J.; Levy Yeyati, Alfredo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Many proposals to generate a time-reversal invariant topological superconducting phase are based on imposing a π phase difference between the superconducting leads proximitizing a nanostructure. We show that this phase can be induced on a thin film of a topological insulator like Bi2Se3 in proximity to a single s-wave superconductor. In our analysis we take into account the parity degree of freedom of the electronic states which is not included in effective Dirac-like surface theories. We find that the topological phase can be reached when the induced interparity pairing dominates over the intraparity one. Application of an electric field perpendicular to the film extends the range of parameters where the topological phase occurs.
Fil: Casas, Oscar E.. Universidad Nacional de Colombia; Colombia. Universidad Autónoma de Madrid; España
Fil: Arrachea, Liliana del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Herrera, William J.. Universidad Nacional de Colombia; Colombia
Fil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; España
Materia
Topological
Superconductivity
Proximity
Effect
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:11336/125415
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuningCasas, Oscar E.Arrachea, Liliana del CarmenHerrera, William J.Levy Yeyati, AlfredoTopologicalSuperconductivityProximityEffecthttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Many proposals to generate a time-reversal invariant topological superconducting phase are based on imposing a π phase difference between the superconducting leads proximitizing a nanostructure. We show that this phase can be induced on a thin film of a topological insulator like Bi2Se3 in proximity to a single s-wave superconductor. In our analysis we take into account the parity degree of freedom of the electronic states which is not included in effective Dirac-like surface theories. We find that the topological phase can be reached when the induced interparity pairing dominates over the intraparity one. Application of an electric field perpendicular to the film extends the range of parameters where the topological phase occurs.Fil: Casas, Oscar E.. Universidad Nacional de Colombia; Colombia. Universidad Autónoma de Madrid; EspañaFil: Arrachea, Liliana del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Herrera, William J.. Universidad Nacional de Colombia; ColombiaFil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; EspañaAmerican Physical Society2019-04-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125415Casas, Oscar E.; Arrachea, Liliana del Carmen; Herrera, William J.; Levy Yeyati, Alfredo; Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning; American Physical Society; Physical Review B; 99; 16; 23-4-2019; 1-92469-99502469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.99.161301info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.161301info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1812.00931info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:21:50Zoai:ri.conicet.gov.ar:11336/125415instacron: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:34982025-09-10 13:21:51.002CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
title Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
spellingShingle Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
Casas, Oscar E.
Topological
Superconductivity
Proximity
Effect
title_short Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
title_full Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
title_fullStr Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
title_full_unstemmed Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
title_sort Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
dc.creator.none.fl_str_mv Casas, Oscar E.
Arrachea, Liliana del Carmen
Herrera, William J.
Levy Yeyati, Alfredo
author Casas, Oscar E.
author_facet Casas, Oscar E.
Arrachea, Liliana del Carmen
Herrera, William J.
Levy Yeyati, Alfredo
author_role author
author2 Arrachea, Liliana del Carmen
Herrera, William J.
Levy Yeyati, Alfredo
author2_role author
author
author
dc.subject.none.fl_str_mv Topological
Superconductivity
Proximity
Effect
topic Topological
Superconductivity
Proximity
Effect
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Many proposals to generate a time-reversal invariant topological superconducting phase are based on imposing a π phase difference between the superconducting leads proximitizing a nanostructure. We show that this phase can be induced on a thin film of a topological insulator like Bi2Se3 in proximity to a single s-wave superconductor. In our analysis we take into account the parity degree of freedom of the electronic states which is not included in effective Dirac-like surface theories. We find that the topological phase can be reached when the induced interparity pairing dominates over the intraparity one. Application of an electric field perpendicular to the film extends the range of parameters where the topological phase occurs.
Fil: Casas, Oscar E.. Universidad Nacional de Colombia; Colombia. Universidad Autónoma de Madrid; España
Fil: Arrachea, Liliana del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Herrera, William J.. Universidad Nacional de Colombia; Colombia
Fil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; España
description Many proposals to generate a time-reversal invariant topological superconducting phase are based on imposing a π phase difference between the superconducting leads proximitizing a nanostructure. We show that this phase can be induced on a thin film of a topological insulator like Bi2Se3 in proximity to a single s-wave superconductor. In our analysis we take into account the parity degree of freedom of the electronic states which is not included in effective Dirac-like surface theories. We find that the topological phase can be reached when the induced interparity pairing dominates over the intraparity one. Application of an electric field perpendicular to the film extends the range of parameters where the topological phase occurs.
publishDate 2019
dc.date.none.fl_str_mv 2019-04-23
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/11336/125415
Casas, Oscar E.; Arrachea, Liliana del Carmen; Herrera, William J.; Levy Yeyati, Alfredo; Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning; American Physical Society; Physical Review B; 99; 16; 23-4-2019; 1-9
2469-9950
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125415
identifier_str_mv Casas, Oscar E.; Arrachea, Liliana del Carmen; Herrera, William J.; Levy Yeyati, Alfredo; Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning; American Physical Society; Physical Review B; 99; 16; 23-4-2019; 1-9
2469-9950
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/doi/10.1103/PhysRevB.99.161301
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.161301
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1812.00931
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
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 12.48226

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