ELECTRICAL AND OPTICAL CORRELATION IN THE STUDY OF THE DEPOPULATION EFFECT IN ASYMMETRIC QUANTUM-WELLS

Authors
ALVES AR GUIMARAES PSS CURY LA MOREIRA MVB LINO AT SCOLFARO LMR
Citation
Ar. Alves et al., ELECTRICAL AND OPTICAL CORRELATION IN THE STUDY OF THE DEPOPULATION EFFECT IN ASYMMETRIC QUANTUM-WELLS, Physical review. B, Condensed matter, 58(11), 1998, pp. 6720-6723
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
58
Issue
11
Year of publication
1998
Pages
6720 - 6723
Database
ISI
SICI code
0163-1829(1998)58:11<6720:EAOCIT>2.0.ZU;2-O
Abstract
A direct comparative analysis is done in order to establish a clear co rrelation between magnetoresistance and photoluminescence measurements on the depopulation effect of higher energy electronic subbands induc ed by a planar magnetic field in Al0.3Ga0.7As/In0.15Ga0.85As/GaAs asym metric quantum wells. The observed negative magnetoresistance and decr easing photoluminescence intensity with the magnetic field is in agree ment with the reduction of the second subband electron density, which is obtained by a self-consistent calculation.