Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle

Autores
Akbari, Kamran; Miskoviv, Zoran L.; Segui Osorio, Silvina Inda Maria; Gervasoni, Juana Luisa; Arista, Nestor Ricardo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a fully relativistic formulation of the energy loss of a charged particle traversing a number of graphene layers and apply it to the case of two spatially separated layers probed by an energetic electron. We focus on the THz frequency range, using a Drude model to describe the conductivity of graphene and allowing for different doping density in each layer. We distinguish two types of contributions to the electron energy loss: the energy deposited in graphene layers in the form of electronic excitations (Ohm losses), which include the excitation of Dirac plasmon polaritons (DPP), and the energy that is emitted in the form of transition radiation. We study in detail the contribution of each layer to the ohmic losses and analyze the directional decomposition of the radiation emitted in the half-spaces defined by the graphene planes. By increasing the interlayer distance and changing the relative doping densities in graphene layers, we find surprisingly strong asymmetries in both the directional and layer-wise decompositions with respect to the direction of motion of the external electron. A modal decomposition is also performed in the limit of vanishing damping in graphene, exposing quite intricate roles of bonding and antibonding hybridization between DPPs in ohmic losses.
Fil: Akbari, Kamran. University of Waterloo; Canadá
Fil: Miskoviv, Zoran L.. University of Waterloo; Canadá
Fil: Segui Osorio, Silvina Inda Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Gervasoni, Juana Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Materia
Dirac Plasmon
Electron Energy Loss
Graphene
Retardation Effects
Transition Radiation
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:11336/57945
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57945
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged ParticleAkbari, KamranMiskoviv, Zoran L.Segui Osorio, Silvina Inda MariaGervasoni, Juana LuisaArista, Nestor RicardoDirac PlasmonElectron Energy LossGrapheneRetardation EffectsTransition Radiationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a fully relativistic formulation of the energy loss of a charged particle traversing a number of graphene layers and apply it to the case of two spatially separated layers probed by an energetic electron. We focus on the THz frequency range, using a Drude model to describe the conductivity of graphene and allowing for different doping density in each layer. We distinguish two types of contributions to the electron energy loss: the energy deposited in graphene layers in the form of electronic excitations (Ohm losses), which include the excitation of Dirac plasmon polaritons (DPP), and the energy that is emitted in the form of transition radiation. We study in detail the contribution of each layer to the ohmic losses and analyze the directional decomposition of the radiation emitted in the half-spaces defined by the graphene planes. By increasing the interlayer distance and changing the relative doping densities in graphene layers, we find surprisingly strong asymmetries in both the directional and layer-wise decompositions with respect to the direction of motion of the external electron. A modal decomposition is also performed in the limit of vanishing damping in graphene, exposing quite intricate roles of bonding and antibonding hybridization between DPPs in ohmic losses.Fil: Akbari, Kamran. University of Waterloo; CanadáFil: Miskoviv, Zoran L.. University of Waterloo; CanadáFil: Segui Osorio, Silvina Inda Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Gervasoni, Juana Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; ArgentinaFil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; ArgentinaAmerican Chemical Society2017-08info: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/11336/57945Akbari, Kamran; Miskoviv, Zoran L.; Segui Osorio, Silvina Inda Maria; Gervasoni, Juana Luisa; Arista, Nestor Ricardo; Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle; American Chemical Society; ACS Photonics; 4; 8; 8-2017; 1980-19922330-4022CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/acsphotonics.7b00344info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsphotonics.7b00344info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:05Zoai:ri.conicet.gov.ar:11336/57945instacron: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:34982025-09-29 09:40:06.044CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
title Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
spellingShingle Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
Akbari, Kamran
Dirac Plasmon
Electron Energy Loss
Graphene
Retardation Effects
Transition Radiation
title_short Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
title_full Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
title_fullStr Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
title_full_unstemmed Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
title_sort Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
dc.creator.none.fl_str_mv Akbari, Kamran
Miskoviv, Zoran L.
Segui Osorio, Silvina Inda Maria
Gervasoni, Juana Luisa
Arista, Nestor Ricardo
author Akbari, Kamran
author_facet Akbari, Kamran
Miskoviv, Zoran L.
Segui Osorio, Silvina Inda Maria
Gervasoni, Juana Luisa
Arista, Nestor Ricardo
author_role author
author2 Miskoviv, Zoran L.
Segui Osorio, Silvina Inda Maria
Gervasoni, Juana Luisa
Arista, Nestor Ricardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Dirac Plasmon
Electron Energy Loss
Graphene
Retardation Effects
Transition Radiation
topic Dirac Plasmon
Electron Energy Loss
Graphene
Retardation Effects
Transition Radiation
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 present a fully relativistic formulation of the energy loss of a charged particle traversing a number of graphene layers and apply it to the case of two spatially separated layers probed by an energetic electron. We focus on the THz frequency range, using a Drude model to describe the conductivity of graphene and allowing for different doping density in each layer. We distinguish two types of contributions to the electron energy loss: the energy deposited in graphene layers in the form of electronic excitations (Ohm losses), which include the excitation of Dirac plasmon polaritons (DPP), and the energy that is emitted in the form of transition radiation. We study in detail the contribution of each layer to the ohmic losses and analyze the directional decomposition of the radiation emitted in the half-spaces defined by the graphene planes. By increasing the interlayer distance and changing the relative doping densities in graphene layers, we find surprisingly strong asymmetries in both the directional and layer-wise decompositions with respect to the direction of motion of the external electron. A modal decomposition is also performed in the limit of vanishing damping in graphene, exposing quite intricate roles of bonding and antibonding hybridization between DPPs in ohmic losses.
Fil: Akbari, Kamran. University of Waterloo; Canadá
Fil: Miskoviv, Zoran L.. University of Waterloo; Canadá
Fil: Segui Osorio, Silvina Inda Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Gervasoni, Juana Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
description We present a fully relativistic formulation of the energy loss of a charged particle traversing a number of graphene layers and apply it to the case of two spatially separated layers probed by an energetic electron. We focus on the THz frequency range, using a Drude model to describe the conductivity of graphene and allowing for different doping density in each layer. We distinguish two types of contributions to the electron energy loss: the energy deposited in graphene layers in the form of electronic excitations (Ohm losses), which include the excitation of Dirac plasmon polaritons (DPP), and the energy that is emitted in the form of transition radiation. We study in detail the contribution of each layer to the ohmic losses and analyze the directional decomposition of the radiation emitted in the half-spaces defined by the graphene planes. By increasing the interlayer distance and changing the relative doping densities in graphene layers, we find surprisingly strong asymmetries in both the directional and layer-wise decompositions with respect to the direction of motion of the external electron. A modal decomposition is also performed in the limit of vanishing damping in graphene, exposing quite intricate roles of bonding and antibonding hybridization between DPPs in ohmic losses.
publishDate 2017
dc.date.none.fl_str_mv 2017-08
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/11336/57945
Akbari, Kamran; Miskoviv, Zoran L.; Segui Osorio, Silvina Inda Maria; Gervasoni, Juana Luisa; Arista, Nestor Ricardo; Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle; American Chemical Society; ACS Photonics; 4; 8; 8-2017; 1980-1992
2330-4022
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57945
identifier_str_mv Akbari, Kamran; Miskoviv, Zoran L.; Segui Osorio, Silvina Inda Maria; Gervasoni, Juana Luisa; Arista, Nestor Ricardo; Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle; American Chemical Society; ACS Photonics; 4; 8; 8-2017; 1980-1992
2330-4022
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/acsphotonics.7b00344
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsphotonics.7b00344
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 American Chemical Society
publisher.none.fl_str_mv American Chemical 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 13.070432

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