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: | 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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Brazilian Journal of Physics |
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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.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 |
_version_ |
1754734862956232704 |