Effective mass in quasi–two-dimensional systems

The effective mass of the quasiparticle excitations in quasi–two-dimensional systems is calculated analytically. It is shown that the effective mass increases sharply when the density approaches the critical one of metal-insulator transition. This suggests a Mott-type transition rather than an Ander...

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Bibliographic Details
Published inEurophysics letters Vol. 67; no. 1; pp. 77 - 83
Main Author Morawetz, K
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.07.2004
EDP Sciences
Subjects
05.60.-k
71.30.+h
73.90.+f
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Summary:The effective mass of the quasiparticle excitations in quasi–two-dimensional systems is calculated analytically. It is shown that the effective mass increases sharply when the density approaches the critical one of metal-insulator transition. This suggests a Mott-type transition rather than an Anderson-like transition. The experimental measurements can be reproduced in this way without any additional parameter.
Bibliography:ark:/67375/80W-7MXK2SR8-V
istex:58A73CA7327EFF870EE233EDBC5F4E92E65C90B7
publisher-ID:epl8235
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2003-10280-2