Hot electrons in superlattices: quantum transport versus Boltzmann equation

Authors
Wacker, A Jauho, AP Rott, S Markus, A Binder, P Dohler, GH
Citation
A. Wacker et al., Hot electrons in superlattices: quantum transport versus Boltzmann equation, PHYSICA B, 272(1-4), 1999, pp. 157-159
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
272
Issue
1-4
Year of publication
1999
Pages
157 - 159
Database
ISI
SICI code
0921-4526(199912)272:1-4<157:HEISQT>2.0.ZU;2-5
Abstract
A self-consistent solution of the transport equation is presented for semic onductor superlattices within different approaches: (i) a full quantum tran sport model based on nonequilibrium Green functions, (ii) the semiclassical Boltzmann equation for electrons in a miniband, and (iii) Boltzmann equati on for electrons in Wannier-Stark states. We find good quantitative agreeme nt of the approximations (ii) and (iii) with (i) in their respective ranges of validity. (C) 1999 Elsevier Science B.V. All rights reserved.