Spectroscopy of hot electron photoluminescence in GaAs/AlAs superlattices

Authors
Sapega, VF Perel, VI Mirlin, DN Ruf, T Cardona, M Winter, W Eberl, K
Citation
Vf. Sapega et al., Spectroscopy of hot electron photoluminescence in GaAs/AlAs superlattices, PHYS ST S-B, 215(1), 1999, pp. 379-386
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
215
Issue
1
Year of publication
1999
Pages
379 - 386
Database
ISI
SICI code
0370-1972(199909)215:1<379:SOHEPI>2.0.ZU;2-X
Abstract
We study dimensionality effects on the hot electron photoluminescence (HPL) in multiple quantum wells (MQWs) and superlattices (SLs). Using the techni que of HPL we demonstrate that the reduction of the semiconductor dimension ality leads to several effects, such as a significant modification of the e lectron-phonon interaction, the observation of L-valley confinement, and va riations of the HPL polarization with energy and magnetic field.