EFFECT OF NONEQUILIBRIUM ACOUSTIC PHONONS ON EXCITON-STATES IN INTERRUPTED GROWN GAAS AL0.33GA0.67AS QUANTUM-WELLS/

Authors
MOSKALENKO ES AKIMOV AV KAPLYANSKII AA ZHMODIKOV AL CHALLIS LJ CHENG TS FOXON CT
Citation
Es. Moskalenko et al., EFFECT OF NONEQUILIBRIUM ACOUSTIC PHONONS ON EXCITON-STATES IN INTERRUPTED GROWN GAAS AL0.33GA0.67AS QUANTUM-WELLS/, Physica. B, Condensed matter, 220, 1996, pp. 59-61
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
220
Year of publication
1996
Pages
59 - 61
Database
ISI
SICI code
0921-4526(1996)220:<59:EONAPO>2.0.ZU;2-U
Abstract
We present the first studies of the effect of heat pulses on the excit on luminescence from GaAs/Al0.33Ga0.67As quantum wells (QW) prepared u sing growth interrupts to reduce the interface step density. We have o bserved the redistribution of excitons between the main thinner part a nd islands one monolayer thick of the QW induced by the heat pulses. T he effect strongly depends on the relative position of heater and exci ton gas and is discussed in terms of the drag of free excitons produce d by ''phonon wind''.