EFFECTS OF CONFINED LONGITUDINAL OPTICAL PHONONS ON THE BINDING-ENERGY OF THE IMPURITY IN A QUANTUM-WELL

Authors
MOUKHLISS S SAYOURI S FLIYOU M
Citation
S. Moukhliss et al., EFFECTS OF CONFINED LONGITUDINAL OPTICAL PHONONS ON THE BINDING-ENERGY OF THE IMPURITY IN A QUANTUM-WELL, Physica status solidi. b, Basic research, 196(2), 1996, pp. 315-321
Citations number
21
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
196
Issue
2
Year of publication
1996
Pages
315 - 321
Database
ISI
SICI code
0370-1972(1996)196:2<315:EOCLOP>2.0.ZU;2-K
Abstract
The effects of the confined LO phonon-electron interaction on the bind ing energy of shallow donors confined in a GaAs-Ga1-xAlxAs quantum wel l are investigated. The barrier potential height is taken into account . Using the variational method of Lee-Low-Pines, we find that the effe ct of this interaction is negligible for very narrow quantum wells. Fo r thick quantum wells, the polaronic contribution is quite large.