ULTRASONIC-ATTENUATION IN SEMICONDUCTOR QUANTUM HETEROSTRUCTURES UNDER A HIGH MAGNETIC-FIELD

Authors
RODRIGUES C FONSECA ALA NUNES OAC
Citation
C. Rodrigues et al., ULTRASONIC-ATTENUATION IN SEMICONDUCTOR QUANTUM HETEROSTRUCTURES UNDER A HIGH MAGNETIC-FIELD, Physica status solidi. b, Basic research, 189(1), 1995, pp. 117-128
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
189
Issue
1
Year of publication
1995
Pages
117 - 128
Database
ISI
SICI code
0370-1972(1995)189:1<117:UISQHU>2.0.ZU;2-M
Abstract
A theory of ultrasonic attenuation in a quasi-two-dimensional electron gas in a quantum well semiconductor heterostructure in the presence o f a quantizing magnetic field is presented. The effect of the high mag netic field on the ultrasonic attenuation coefficient is studied in th e extreme quantum limit, when all the electrons are accomodated in the lowest Landau level and electro-subband, Numerical examples are shown and discussed.