Ballistic transport in semiconductor quantum wires in the presence of defects

Ballistic transport in semiconductor quantum wires in the presence of defects

We present calculations of the conductance in semiconductor quasi-one-dimensional systems using the Landauer formalism. We consider the effects on the transport properties inside semiconductor quantum waveguides of different shapes when a defect is located either in the wire region or in the quasi-two-dimensional region. We observe changes on the plateau's threshold when the defect is placed inside the wire and lowering of the conductance plateaus themselves below the conductance quantum G0 =2e² /h when the defect is outside the wire.

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Main Authors: Rocha,A. R., Brum,J. A.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Física 2002
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200012
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spelling oai:scielo:S0103-973320020002000122002-11-26Ballistic transport in semiconductor quantum wires in the presence of defectsRocha,A. R.Brum,J. A.We present calculations of the conductance in semiconductor quasi-one-dimensional systems using the Landauer formalism. We consider the effects on the transport properties inside semiconductor quantum waveguides of different shapes when a defect is located either in the wire region or in the quasi-two-dimensional region. We observe changes on the plateau's threshold when the defect is placed inside the wire and lowering of the conductance plateaus themselves below the conductance quantum G0 =2e² /h when the defect is outside the wire.info:eu-repo/semantics/openAccessSociedade Brasileira de FísicaBrazilian Journal of Physics v.32 n.2a 20022002-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200012en10.1590/S0103-97332002000200012
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Rocha,A. R.
Brum,J. A.
spellingShingle Rocha,A. R.
Brum,J. A.
Ballistic transport in semiconductor quantum wires in the presence of defects
author_facet Rocha,A. R.
Brum,J. A.
author_sort Rocha,A. R.
title Ballistic transport in semiconductor quantum wires in the presence of defects
title_short Ballistic transport in semiconductor quantum wires in the presence of defects
title_full Ballistic transport in semiconductor quantum wires in the presence of defects
title_fullStr Ballistic transport in semiconductor quantum wires in the presence of defects
title_full_unstemmed Ballistic transport in semiconductor quantum wires in the presence of defects
title_sort ballistic transport in semiconductor quantum wires in the presence of defects
description We present calculations of the conductance in semiconductor quasi-one-dimensional systems using the Landauer formalism. We consider the effects on the transport properties inside semiconductor quantum waveguides of different shapes when a defect is located either in the wire region or in the quasi-two-dimensional region. We observe changes on the plateau's threshold when the defect is placed inside the wire and lowering of the conductance plateaus themselves below the conductance quantum G0 =2e² /h when the defect is outside the wire.
publisher Sociedade Brasileira de Física
publishDate 2002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200012
work_keys_str_mv AT rochaar ballistictransportinsemiconductorquantumwiresinthepresenceofdefects
AT brumja ballistictransportinsemiconductorquantumwiresinthepresenceofdefects
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