Charged excitons in ZnSe-based quantum wells

Authors
Astakhov, GV Yakovlev, DR Kochereshko, VP Ossau, W Nurnberger, J Faschinger, W Landwehr, G
Citation
Gv. Astakhov et al., Charged excitons in ZnSe-based quantum wells, PHYS REV B, 60(12), 1999, pp. R8485-R8488
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
12
Year of publication
1999
Pages
R8485 - R8488
Database
ISI
SICI code
0163-1829(19990915)60:12<R8485:CEIZQW>2.0.ZU;2-B
Abstract
We report on magneto-optical studies of ZnSe/(Zn,Mg)(S,Se) quantum wells wi th n-type and p-type modulation doping. Negatively and positively charged e xcitons related to the heavy-hole exciton states are found and identified b y their polarization properties. Negatively charged excitons formed with li ght-hole exciton states are observed. Their binding energy is about 20% les s than that related to the heavy-hole exciton. The exciton and trion parame ters (radiative and nonradiative dampings) are determined.