Intersubband excitations at finite temperatures and their roles in different quasi-one-dimensional systems
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | |
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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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 |