A hydrodynamic model approach to the formation of plasmonic wakes in graphene

Detalhes bibliográficos
Autor(a) principal: Chaves, A. J.
Data de Publicação: 2017
Outros Autores: Peres, N. M. R., Smirnov, Georgi, Mortensen, N. Asger
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/47626
Resumo: Using the hydrodynamic model in the electrostatic approximation, we describe the formation of graphene surface plasmons when a charge is in motion either perpendicular or parallel to a graphene sheet. In the first case, the electron-energy loss (EEL) spectrum of the electron is computed, showing that the resonances in the spectrum are linked to the frequency of the graphene surface plasmons. In the second case, we discuss the formation of plasmonic wakes due to the dragging of the surface plasmons induced by the motion of the charge. This effect is similar to Coulomb drag between two electron gases at a distance from each other. We derive simple expressions for the electrostatic potential induced by the moving charge on graphene. We find an analytical expression for the angle of the plasmonic wake valid in two opposite regimes. We show that there is a transition from a Mach-type wake at high speeds to a Kelvin-type wake at low ones and identify the Froude number for plasmonic wakes. We show that the Froude number can be controlled externally tunning both the Fermi energy in graphene and the dielectric function of the environment, a situation with no parallel in ship wakes. Using EEL we propose a source of graphene plasmons, based on a graphene drum built in a metallic waveguide and activated by an electron beam created by the tip of an electronic microscope. We also introduce the notion of a plasmonic billiard.
id RCAP_68c2c8d06e0cf9d9ee72ae05e11c0388
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/47626
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling A hydrodynamic model approach to the formation of plasmonic wakes in grapheneGraphenePlasmonicsEELHydrodynamicsCiências Naturais::Ciências FísicasScience & TechnologyUsing the hydrodynamic model in the electrostatic approximation, we describe the formation of graphene surface plasmons when a charge is in motion either perpendicular or parallel to a graphene sheet. In the first case, the electron-energy loss (EEL) spectrum of the electron is computed, showing that the resonances in the spectrum are linked to the frequency of the graphene surface plasmons. In the second case, we discuss the formation of plasmonic wakes due to the dragging of the surface plasmons induced by the motion of the charge. This effect is similar to Coulomb drag between two electron gases at a distance from each other. We derive simple expressions for the electrostatic potential induced by the moving charge on graphene. We find an analytical expression for the angle of the plasmonic wake valid in two opposite regimes. We show that there is a transition from a Mach-type wake at high speeds to a Kelvin-type wake at low ones and identify the Froude number for plasmonic wakes. We show that the Froude number can be controlled externally tunning both the Fermi energy in graphene and the dielectric function of the environment, a situation with no parallel in ship wakes. Using EEL we propose a source of graphene plasmons, based on a graphene drum built in a metallic waveguide and activated by an electron beam created by the tip of an electronic microscope. We also introduce the notion of a plasmonic billiard.A.J.C. acknowledges for a scholarship from the Brazilian agency CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico). N.M.R.P. acknowledges useful discussions with Jaime Santos and support from the European Commission through the project "Graphene-Driven Revolutions in ICT and Beyond" (Ref. No. 696656) and the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Financing UID/FIS/04650/2013. The Center for Nanostructured Graphene (CNG) was financed by the Danish National Research Council (DNRF103). N.A.M. is a VILLUM Investigator supported by VILLUM Fonden (Grant No. 16498).info:eu-repo/semantics/submittedVersionAmerican Physical SocietyUniversidade do MinhoChaves, A. J.Peres, N. M. R.Smirnov, GeorgiMortensen, N. Asger2017-11-142017-11-14T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/47626eng2469-99502469-996910.1103/PhysRevB.96.195438https://journals.aps.org/prb/accepted/5e07bO6eUa814b3df3c32924ffed6ec688169a0d2info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:14:52Zoai:repositorium.sdum.uminho.pt:1822/47626Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:07:13.619599Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv A hydrodynamic model approach to the formation of plasmonic wakes in graphene
title A hydrodynamic model approach to the formation of plasmonic wakes in graphene
spellingShingle A hydrodynamic model approach to the formation of plasmonic wakes in graphene
Chaves, A. J.
Graphene
Plasmonics
EEL
Hydrodynamics
Ciências Naturais::Ciências Físicas
Science & Technology
title_short A hydrodynamic model approach to the formation of plasmonic wakes in graphene
title_full A hydrodynamic model approach to the formation of plasmonic wakes in graphene
title_fullStr A hydrodynamic model approach to the formation of plasmonic wakes in graphene
title_full_unstemmed A hydrodynamic model approach to the formation of plasmonic wakes in graphene
title_sort A hydrodynamic model approach to the formation of plasmonic wakes in graphene
author Chaves, A. J.
author_facet Chaves, A. J.
Peres, N. M. R.
Smirnov, Georgi
Mortensen, N. Asger
author_role author
author2 Peres, N. M. R.
Smirnov, Georgi
Mortensen, N. Asger
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Chaves, A. J.
Peres, N. M. R.
Smirnov, Georgi
Mortensen, N. Asger
dc.subject.por.fl_str_mv Graphene
Plasmonics
EEL
Hydrodynamics
Ciências Naturais::Ciências Físicas
Science & Technology
topic Graphene
Plasmonics
EEL
Hydrodynamics
Ciências Naturais::Ciências Físicas
Science & Technology
description Using the hydrodynamic model in the electrostatic approximation, we describe the formation of graphene surface plasmons when a charge is in motion either perpendicular or parallel to a graphene sheet. In the first case, the electron-energy loss (EEL) spectrum of the electron is computed, showing that the resonances in the spectrum are linked to the frequency of the graphene surface plasmons. In the second case, we discuss the formation of plasmonic wakes due to the dragging of the surface plasmons induced by the motion of the charge. This effect is similar to Coulomb drag between two electron gases at a distance from each other. We derive simple expressions for the electrostatic potential induced by the moving charge on graphene. We find an analytical expression for the angle of the plasmonic wake valid in two opposite regimes. We show that there is a transition from a Mach-type wake at high speeds to a Kelvin-type wake at low ones and identify the Froude number for plasmonic wakes. We show that the Froude number can be controlled externally tunning both the Fermi energy in graphene and the dielectric function of the environment, a situation with no parallel in ship wakes. Using EEL we propose a source of graphene plasmons, based on a graphene drum built in a metallic waveguide and activated by an electron beam created by the tip of an electronic microscope. We also introduce the notion of a plasmonic billiard.
publishDate 2017
dc.date.none.fl_str_mv 2017-11-14
2017-11-14T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/47626
url http://hdl.handle.net/1822/47626
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2469-9950
2469-9969
10.1103/PhysRevB.96.195438
https://journals.aps.org/prb/accepted/5e07bO6eUa814b3df3c32924ffed6ec688169a0d2
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799132490014654464