Magnetotransport in a spatially modulated magnetic field

Detalhes bibliográficos
Autor(a) principal: Gusev,G.M.
Data de Publicação: 1999
Outros Autores: Quivy,A. A., Leite,J.R., Bykov,A. A., Moshegov,N.T., Kudryashev,V.M., Toropov,A.I., Nastaushev,Yu.V.
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=S0103-97331999000400018
Resumo: We have measured the Shubnikov de Haas (SdH) oscillations of a nonplanar two-dimensional electron gas (2DEG) fabricated by overgrowth of a GaAs/AlGaAs heterojunction on a pre-patterned substrate. When placed in a uniform external magnetic field B, the field normal to the nonplanar 2DEG is spatially modulated, and electrons experience a nonuniform magnetic field. In a tilted magnetic field, the SdH oscillations are much more strongly damped than in a field perpendicular to the substrate. We consider several mechanisms and conclude that the electron scattering by the magnetic field spatial uctuations plays a main role in the transport properties of a nonplanar 2DEG at low magnetic field.
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spelling Magnetotransport in a spatially modulated magnetic fieldWe have measured the Shubnikov de Haas (SdH) oscillations of a nonplanar two-dimensional electron gas (2DEG) fabricated by overgrowth of a GaAs/AlGaAs heterojunction on a pre-patterned substrate. When placed in a uniform external magnetic field B, the field normal to the nonplanar 2DEG is spatially modulated, and electrons experience a nonuniform magnetic field. In a tilted magnetic field, the SdH oscillations are much more strongly damped than in a field perpendicular to the substrate. We consider several mechanisms and conclude that the electron scattering by the magnetic field spatial uctuations plays a main role in the transport properties of a nonplanar 2DEG at low magnetic field.Sociedade Brasileira de Física1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000400018Brazilian Journal of Physics v.29 n.4 1999reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97331999000400018info:eu-repo/semantics/openAccessGusev,G.M.Quivy,A. A.Leite,J.R.Bykov,A. A.Moshegov,N.T.Kudryashev,V.M.Toropov,A.I.Nastaushev,Yu.V.eng2001-02-23T00:00:00Zoai:scielo:S0103-97331999000400018Revistahttp://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:2001-02-23T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Magnetotransport in a spatially modulated magnetic field
title Magnetotransport in a spatially modulated magnetic field
spellingShingle Magnetotransport in a spatially modulated magnetic field
Gusev,G.M.
title_short Magnetotransport in a spatially modulated magnetic field
title_full Magnetotransport in a spatially modulated magnetic field
title_fullStr Magnetotransport in a spatially modulated magnetic field
title_full_unstemmed Magnetotransport in a spatially modulated magnetic field
title_sort Magnetotransport in a spatially modulated magnetic field
author Gusev,G.M.
author_facet Gusev,G.M.
Quivy,A. A.
Leite,J.R.
Bykov,A. A.
Moshegov,N.T.
Kudryashev,V.M.
Toropov,A.I.
Nastaushev,Yu.V.
author_role author
author2 Quivy,A. A.
Leite,J.R.
Bykov,A. A.
Moshegov,N.T.
Kudryashev,V.M.
Toropov,A.I.
Nastaushev,Yu.V.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gusev,G.M.
Quivy,A. A.
Leite,J.R.
Bykov,A. A.
Moshegov,N.T.
Kudryashev,V.M.
Toropov,A.I.
Nastaushev,Yu.V.
description We have measured the Shubnikov de Haas (SdH) oscillations of a nonplanar two-dimensional electron gas (2DEG) fabricated by overgrowth of a GaAs/AlGaAs heterojunction on a pre-patterned substrate. When placed in a uniform external magnetic field B, the field normal to the nonplanar 2DEG is spatially modulated, and electrons experience a nonuniform magnetic field. In a tilted magnetic field, the SdH oscillations are much more strongly damped than in a field perpendicular to the substrate. We consider several mechanisms and conclude that the electron scattering by the magnetic field spatial uctuations plays a main role in the transport properties of a nonplanar 2DEG at low magnetic field.
publishDate 1999
dc.date.none.fl_str_mv 1999-12-01
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=S0103-97331999000400018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000400018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97331999000400018
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.29 n.4 1999
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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