PHOTOLUMINESCENCE OF GAAS ALGAAS HETEROJUNCTIONS IN MAGNETIC-FIELDS UP TO 50 T/

Authors
PRIEST AN NICHOLAS RJ CHENG HH VANDERBURGT M HARRIS JJ FOXON CT
Citation
An. Priest et al., PHOTOLUMINESCENCE OF GAAS ALGAAS HETEROJUNCTIONS IN MAGNETIC-FIELDS UP TO 50 T/, Physica. B, Condensed matter, 251, 1998, pp. 562-565
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
251
Year of publication
1998
Pages
562 - 565
Database
ISI
SICI code
0921-4526(1998)251:<562:POGAHI>2.0.ZU;2-L
Abstract
We report measurements of photo-luminescence from GaAs/AlGaAs heteroju nctions in the ultra-quantum limit. New features are observed for low electron densities at high magnetic field, which we suggest are associ ated with the formation of negatively charged excitons, both singlet a nd triplet states. The dependence of the spectra on temperature and ca rrier density are presented in support of this theory. (C) 1998 Elsevi er Science B.V. All rights reserved.