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dc.contributor.author
Akbari, Kamran
dc.contributor.author
Miskoviv, Zoran L.
dc.contributor.author
Segui Osorio, Silvina Inda Maria
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dc.contributor.author
Gervasoni, Juana Luisa
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Arista, Nestor Ricardo
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dc.date.available
2018-08-31T19:45:17Z
dc.date.issued
2017-08
dc.identifier.citation
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
dc.identifier.issn
2330-4022
dc.identifier.uri
http://hdl.handle.net/11336/57945
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Dirac Plasmon
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Electron Energy Loss
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Graphene
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Retardation Effects
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Transition Radiation
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Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Energy Losses and Transition Radiation in Multilayer Graphene Traversed by a Fast Charged Particle
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-31T14:09:51Z
dc.journal.volume
4
dc.journal.number
8
dc.journal.pagination
1980-1992
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Washington
dc.description.fil
Fil: Akbari, Kamran. University of Waterloo; Canadá
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Fil: Miskoviv, Zoran L.. University of Waterloo; Canadá
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Fil: Segui Osorio, Silvina Inda Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
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
dc.description.fil
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
dc.journal.title
ACS Photonics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1021/acsphotonics.7b00344
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsphotonics.7b00344
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