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Monte Carlo studies of miniband conduction in extreme type-II superlattices

Abstract:
Miniband charge transport was investigated by Monte Carlo simulations of electronic motion in short period superlattices of type-II energy band alignment (InAs/GaSb composition). The strong decrease of the miniband energy width when the electronic in-plane energy increases, characteristic of type-II superlattices, leads to a conductivity that is very sensitive to a magnetic field applied parallel to the axis of the superlattice. For structures with a miniband energy width greater than the optic phonon energy, the differential conductance can be changed from positive to negative by the magnetic field, due to the suppression of optic phonon emission.
Publication status:
Published

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Publisher copy:
10.1590/S0103-97332004000400017

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author


Journal:
BRAZILIAN JOURNAL OF PHYSICS More from this journal
Volume:
34
Issue:
2B
Pages:
605-607
Publication date:
2004-06-01
Event title:
11th Brazilian Workshop on Semiconductor Physics
DOI:
ISSN:
0103-9733


Keywords:
Pubs id:
pubs:30584
UUID:
uuid:866aef54-5da2-4502-9ad6-d7ca1b0585c9
Local pid:
pubs:30584
Source identifiers:
30584
Deposit date:
2012-12-19

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