Influence of the magnetic polaron formation on the exciton kinetics in Cd1-xMnxTe/ZuTe multiple quantum wells

Citation
R. Pittini et al., Influence of the magnetic polaron formation on the exciton kinetics in Cd1-xMnxTe/ZuTe multiple quantum wells, PHYS ST S-B, 221(1), 2000, pp. 355-358
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
0370-1972 → ACNP
Volume
221
Issue
1
Year of publication
2000
Pages
355 - 358
Database
ISI
SICI code
0370-1972(200009)221:1<355:IOTMPF>2.0.ZU;2-W
Abstract
We present optical pump-probe experiments carried out in Cd1-xMnxTe/ZnTe mu ltiple quantum wells to study the dynamics of excitons, exchange-coupled to Mn spins in the form of magnetic polarons. From the analysis of the transi ent absorption spectra, we found that the magnetic polaron formation a) sup presses the formation of biexcitons (this simplifies the lineshape analysis of the pump-probe spectra) and b) retards the energy relaxation of the exc itons by 14 ps in these semimagnetic structures.