Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2002 |
| 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=S0103-97332002000200027 |
Resumo: | Shubnikov-de Haas oscillations are measured in a wide parabolic quantum well with 6 subbands in a tilted magnetic fi eld. We find two types of oscillations. The oscillations at low magnetic field are shifted towards higher fields with tilted angles, and can be attributed to the two-dimensional Landau state at the bottom subband. The position of the second type oscillations do not shift with tilted angles indicating a three-dimensional character of the Landau state formed by the highest subbands. The bottom level in the quantum well is not overlapped with the highest subbands due to the enhanced quantum scattering time of the lowest subbands. |
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Landau levels in two and three-dimensional electron gases in a wide parabolic quantum wellShubnikov-de Haas oscillations are measured in a wide parabolic quantum well with 6 subbands in a tilted magnetic fi eld. We find two types of oscillations. The oscillations at low magnetic field are shifted towards higher fields with tilted angles, and can be attributed to the two-dimensional Landau state at the bottom subband. The position of the second type oscillations do not shift with tilted angles indicating a three-dimensional character of the Landau state formed by the highest subbands. The bottom level in the quantum well is not overlapped with the highest subbands due to the enhanced quantum scattering time of the lowest subbands.Sociedade Brasileira de Física2002-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200027Brazilian Journal of Physics v.32 n.2a 2002reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332002000200027info:eu-repo/semantics/openAccessSergio,C.S.Gusev,G.M.Leite,J.R.Olshanetskii,E.B.Bykov,A.A.Moshegov,N.T.Bakarov,A.K.Toropov,A.I.Maude,D.K.Estibals,O.Portal,J.C.eng2002-11-26T00:00:00Zoai:scielo:S0103-97332002000200027Revistahttp://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:2002-11-26T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false |
| dc.title.none.fl_str_mv |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| title |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| spellingShingle |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well Sergio,C.S. |
| title_short |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| title_full |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| title_fullStr |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| title_full_unstemmed |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| title_sort |
Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well |
| author |
Sergio,C.S. |
| author_facet |
Sergio,C.S. Gusev,G.M. Leite,J.R. Olshanetskii,E.B. Bykov,A.A. Moshegov,N.T. Bakarov,A.K. Toropov,A.I. Maude,D.K. Estibals,O. Portal,J.C. |
| author_role |
author |
| author2 |
Gusev,G.M. Leite,J.R. Olshanetskii,E.B. Bykov,A.A. Moshegov,N.T. Bakarov,A.K. Toropov,A.I. Maude,D.K. Estibals,O. Portal,J.C. |
| author2_role |
author author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Sergio,C.S. Gusev,G.M. Leite,J.R. Olshanetskii,E.B. Bykov,A.A. Moshegov,N.T. Bakarov,A.K. Toropov,A.I. Maude,D.K. Estibals,O. Portal,J.C. |
| description |
Shubnikov-de Haas oscillations are measured in a wide parabolic quantum well with 6 subbands in a tilted magnetic fi eld. We find two types of oscillations. The oscillations at low magnetic field are shifted towards higher fields with tilted angles, and can be attributed to the two-dimensional Landau state at the bottom subband. The position of the second type oscillations do not shift with tilted angles indicating a three-dimensional character of the Landau state formed by the highest subbands. The bottom level in the quantum well is not overlapped with the highest subbands due to the enhanced quantum scattering time of the lowest subbands. |
| publishDate |
2002 |
| dc.date.none.fl_str_mv |
2002-06-01 |
| 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=S0103-97332002000200027 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200027 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
10.1590/S0103-97332002000200027 |
| 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.32 n.2a 2002 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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1754734859762270208 |