Crystal anisotropy and spin-polarized photoluminescence of ordered GaxIn1-xP

Authors
Fluegel, B Zhang, Y Mascarenhas, A Geisz, JF Olson, JM Duda, A
Citation
B. Fluegel et al., Crystal anisotropy and spin-polarized photoluminescence of ordered GaxIn1-xP, PHYS REV B, 60(16), 1999, pp. R11261-R11264
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
16
Year of publication
1999
Pages
R11261 - R11264
Database
ISI
SICI code
0163-1829(19991015)60:16<R11261:CAASPO>2.0.ZU;2-6
Abstract
Two-color up-conversion time-resolved photoluminescence and time-resolved a bsorption are used to study spin relaxation of near-resonant heavy-hole exc itons in spontaneously ordered GaxIn1-xP. The photoluminescence anisotropy is studied as a function of crystal direction, revealing a strong dependenc e on the right orientation with respect to the ordering axis. The maximum o bserved polarization is 0.8, and indicates that the polarization is near un ity shortly after excitation. The carrier spin-relaxation time is 150 ps. [ S0163-1829(99)50940-5].