Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems

Detalhes bibliográficos
Autor(a) principal: Tavares,Marcos R. S.
Data de Publicação: 2006
Outros Autores: Hai,Guo-Qiang
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000300049
Resumo: We theoretically study many-body excitations in three different quasi-one-dimensional (Q1D) electron systems: (i) those formed on the surface of liquid Helium; (ii) in two coupled semiconductor quantum wires; and (iii) Q1D electrons embedded in polar semiconductor-based quantum wires. Our results show intersubband coupling between higher subbands and the two lowest subbands affecting even the lower energy intersubband plasmons on the liquid Helium surface. Concerning the second system, we show a pronounced extra peak appearing in the intersubband impurity spectral function for temperatures as high as 20 K. We finally show coupled intersubband plasmon-phonon modes surviving for temperatures up to 300 K.
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spelling Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systemsIntersubband excitationsMany-body excitationsQuasi-one-dimensional (Q1D) electron systemsWe theoretically study many-body excitations in three different quasi-one-dimensional (Q1D) electron systems: (i) those formed on the surface of liquid Helium; (ii) in two coupled semiconductor quantum wires; and (iii) Q1D electrons embedded in polar semiconductor-based quantum wires. Our results show intersubband coupling between higher subbands and the two lowest subbands affecting even the lower energy intersubband plasmons on the liquid Helium surface. Concerning the second system, we show a pronounced extra peak appearing in the intersubband impurity spectral function for temperatures as high as 20 K. We finally show coupled intersubband plasmon-phonon modes surviving for temperatures up to 300 K.Sociedade Brasileira de Física2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000300049Brazilian Journal of Physics v.36 n.2a 2006reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332006000300049info:eu-repo/semantics/openAccessTavares,Marcos R. S.Hai,Guo-Qiangeng2006-07-14T00:00:00Zoai:scielo:S0103-97332006000300049Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-07-14T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
title Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
spellingShingle Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
Tavares,Marcos R. S.
Intersubband excitations
Many-body excitations
Quasi-one-dimensional (Q1D) electron systems
title_short Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
title_full Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
title_fullStr Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
title_full_unstemmed Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
title_sort Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
author Tavares,Marcos R. S.
author_facet Tavares,Marcos R. S.
Hai,Guo-Qiang
author_role author
author2 Hai,Guo-Qiang
author2_role author
dc.contributor.author.fl_str_mv Tavares,Marcos R. S.
Hai,Guo-Qiang
dc.subject.por.fl_str_mv Intersubband excitations
Many-body excitations
Quasi-one-dimensional (Q1D) electron systems
topic Intersubband excitations
Many-body excitations
Quasi-one-dimensional (Q1D) electron systems
description We theoretically study many-body excitations in three different quasi-one-dimensional (Q1D) electron systems: (i) those formed on the surface of liquid Helium; (ii) in two coupled semiconductor quantum wires; and (iii) Q1D electrons embedded in polar semiconductor-based quantum wires. Our results show intersubband coupling between higher subbands and the two lowest subbands affecting even the lower energy intersubband plasmons on the liquid Helium surface. Concerning the second system, we show a pronounced extra peak appearing in the intersubband impurity spectral function for temperatures as high as 20 K. We finally show coupled intersubband plasmon-phonon modes surviving for temperatures up to 300 K.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000300049
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000300049
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332006000300049
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.36 n.2a 2006
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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