Rectangular quantum wires in a magnetic field: phase diagrams and subband dispersion

Authors
Lorenzoni, A Andreani, LC
Citation
A. Lorenzoni et Lc. Andreani, Rectangular quantum wires in a magnetic field: phase diagrams and subband dispersion, SEMIC SCI T, 14(12), 1999, pp. 1169-1174
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
ISSN journal
02681242 → ACNP
Volume
14
Issue
12
Year of publication
1999
Pages
1169 - 1174
Database
ISI
SICI code
0268-1242(199912)14:12<1169:RQWIAM>2.0.ZU;2-W
Abstract
The subband dispersion of rectangular quantum wires in a transverse magneti c field is calculated in a one-band model. A phase diagram describing the d ifferent dispersion regimes is derived in terms of dimensionless variables. For the case of an infinite barrier, a region of inner Landau levels, a di amagnetic and an edge state region are identified; when the barrier height is finite outer Landau levels also occur. The calculated magnetoabsorption reflects the various regimes of the dispersion.