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

Detalhes bibliográficos
Autor(a) principal: Tavares, Marcos R. S. [UNESP]
Data de Publicação: 2006
Outros Autores: Hai, Guo-Qiang
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-97332006000300049
http://hdl.handle.net/11449/29750
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.Universidade Estadual Paulista Instituto de Física TeóricaUniversidade de São Paulo Instituto de Física de São CarlosUniversidade Estadual Paulista Instituto de Física TeóricaSociedade Brasileira de FísicaUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Tavares, Marcos R. S. [UNESP]Hai, Guo-Qiang2014-05-20T15:15:43Z2014-05-20T15:15:43Z2006-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article415-418application/pdfhttp://dx.doi.org/10.1590/S0103-97332006000300049Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 36, n. 2a, p. 415-418, 2006.0103-9733http://hdl.handle.net/11449/2975010.1590/S0103-97332006000300049S0103-97332006000300049S0103-97332006000300049.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Physics1.0820,276info:eu-repo/semantics/openAccess2023-10-03T06:08:48Zoai:repositorio.unesp.br:11449/29750Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:56:54.522183Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)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. [UNESP]
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. [UNESP]
author_facet Tavares, Marcos R. S. [UNESP]
Hai, Guo-Qiang
author_role author
author2 Hai, Guo-Qiang
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Tavares, Marcos R. S. [UNESP]
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
2014-05-20T15:15:43Z
2014-05-20T15:15:43Z
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://dx.doi.org/10.1590/S0103-97332006000300049
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 36, n. 2a, p. 415-418, 2006.
0103-9733
http://hdl.handle.net/11449/29750
10.1590/S0103-97332006000300049
S0103-97332006000300049
S0103-97332006000300049.pdf
url http://dx.doi.org/10.1590/S0103-97332006000300049
http://hdl.handle.net/11449/29750
identifier_str_mv Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 36, n. 2a, p. 415-418, 2006.
0103-9733
10.1590/S0103-97332006000300049
S0103-97332006000300049
S0103-97332006000300049.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Physics
1.082
0,276
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 415-418
application/pdf
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 SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128293497470976