Irradiated graphene as a tunable Floquet topological insulator

Autores
Usaj, Gonzalo; Pérez Piskunow, Pablo Matías; Foa Torres, Luis Eduardo Francisco; Balseiro, Carlos Antonio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in itsquasi-energy band structure and becomes a Floquet insulator. Here we analyze how topologically protected edgestates arise inside these gaps in the presence of an edge. Our results show that the gap appearing at̵hΩ~2, where̵hΩis the photon energy, is bridged by two chiral edge states whose propagation direction is set by the directionof the polarization of the radiation field. Therefore, both the propagation direction and the energy window wherethe states appear can be controlled externally. We present both analytical and numerical calculations that fullycharacterize these states. This is complemented by simple topological arguments that account for them and bynumerical calculations for the case of semi-infinite sample, thereby eliminating finite size effects.
Fil: Usaj, Gonzalo. 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; Argentina
Fil: Pérez Piskunow, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Balseiro, Carlos Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Materia
graphene
topological insulators
chern numbers
floquet
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:11336/31852
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Irradiated graphene as a tunable Floquet topological insulatorUsaj, GonzaloPérez Piskunow, Pablo MatíasFoa Torres, Luis Eduardo FranciscoBalseiro, Carlos Antoniographenetopological insulatorschern numbersfloquethttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in itsquasi-energy band structure and becomes a Floquet insulator. Here we analyze how topologically protected edgestates arise inside these gaps in the presence of an edge. Our results show that the gap appearing at̵hΩ~2, where̵hΩis the photon energy, is bridged by two chiral edge states whose propagation direction is set by the directionof the polarization of the radiation field. Therefore, both the propagation direction and the energy window wherethe states appear can be controlled externally. We present both analytical and numerical calculations that fullycharacterize these states. This is complemented by simple topological arguments that account for them and bynumerical calculations for the case of semi-infinite sample, thereby eliminating finite size effects.Fil: Usaj, Gonzalo. 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; ArgentinaFil: Pérez Piskunow, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Balseiro, Carlos Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaAmerican Physical Society2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31852Balseiro, Carlos Antonio; Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Usaj, Gonzalo; Irradiated graphene as a tunable Floquet topological insulator; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 1-131098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.90.115423info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.115423info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:30:00Zoai:ri.conicet.gov.ar:11336/31852instacron: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 14:30:01.262CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Irradiated graphene as a tunable Floquet topological insulator
title Irradiated graphene as a tunable Floquet topological insulator
spellingShingle Irradiated graphene as a tunable Floquet topological insulator
Usaj, Gonzalo
graphene
topological insulators
chern numbers
floquet
title_short Irradiated graphene as a tunable Floquet topological insulator
title_full Irradiated graphene as a tunable Floquet topological insulator
title_fullStr Irradiated graphene as a tunable Floquet topological insulator
title_full_unstemmed Irradiated graphene as a tunable Floquet topological insulator
title_sort Irradiated graphene as a tunable Floquet topological insulator
dc.creator.none.fl_str_mv Usaj, Gonzalo
Pérez Piskunow, Pablo Matías
Foa Torres, Luis Eduardo Francisco
Balseiro, Carlos Antonio
author Usaj, Gonzalo
author_facet Usaj, Gonzalo
Pérez Piskunow, Pablo Matías
Foa Torres, Luis Eduardo Francisco
Balseiro, Carlos Antonio
author_role author
author2 Pérez Piskunow, Pablo Matías
Foa Torres, Luis Eduardo Francisco
Balseiro, Carlos Antonio
author2_role author
author
author
dc.subject.none.fl_str_mv graphene
topological insulators
chern numbers
floquet
topic graphene
topological insulators
chern numbers
floquet
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in itsquasi-energy band structure and becomes a Floquet insulator. Here we analyze how topologically protected edgestates arise inside these gaps in the presence of an edge. Our results show that the gap appearing at̵hΩ~2, where̵hΩis the photon energy, is bridged by two chiral edge states whose propagation direction is set by the directionof the polarization of the radiation field. Therefore, both the propagation direction and the energy window wherethe states appear can be controlled externally. We present both analytical and numerical calculations that fullycharacterize these states. This is complemented by simple topological arguments that account for them and bynumerical calculations for the case of semi-infinite sample, thereby eliminating finite size effects.
Fil: Usaj, Gonzalo. 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; Argentina
Fil: Pérez Piskunow, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Balseiro, Carlos Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
description In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in itsquasi-energy band structure and becomes a Floquet insulator. Here we analyze how topologically protected edgestates arise inside these gaps in the presence of an edge. Our results show that the gap appearing at̵hΩ~2, where̵hΩis the photon energy, is bridged by two chiral edge states whose propagation direction is set by the directionof the polarization of the radiation field. Therefore, both the propagation direction and the energy window wherethe states appear can be controlled externally. We present both analytical and numerical calculations that fullycharacterize these states. This is complemented by simple topological arguments that account for them and bynumerical calculations for the case of semi-infinite sample, thereby eliminating finite size effects.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/31852
Balseiro, Carlos Antonio; Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Usaj, Gonzalo; Irradiated graphene as a tunable Floquet topological insulator; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 1-13
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31852
identifier_str_mv Balseiro, Carlos Antonio; Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Usaj, Gonzalo; Irradiated graphene as a tunable Floquet topological insulator; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 1-13
1098-0121
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.90.115423
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.115423
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 13.22299

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