We investigate the spin relaxation of negatively charged excitons in modulation-doped CdTe quantum wells by time-resolved photoluminescence. The charged exciton spin flip process is found to be very sensitive to the excitation energy but not to a change of electron concentration. We exclude the Bir-Aronov-Pikus mechanism, which is based on the exchange interaction, as responsible for the X- spin flip.
Title
Spin relaxation of negatively charged excitons in CdTe quantum wells
Published in
Physica Status Solidi B-Basic Research
Volume
229
Issue
2
Pages
627-631
Date
2002
ISSN
0370-1972
Note
Swiss Fed Inst Technol, Dept Phys, EPFL, CH-1015 Lausanne, Switzerland. Warsaw Univ, Inst Expt Phys, Warsaw, Poland. Polish Acad Sci, Inst Phys, Warsaw, Poland. Ciulin, V, Swiss Fed Inst Technol, Dept Phys, EPFL, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 520WL
Cited Reference Count: 12
Cited References:
BAYLAC B, 1995, SOLID STATE COMMUN, V93, P57
CIULIN V, 2000, PHYS REV B, V62, P16310
DAMEN TC, 1991, PHYS REV LETT, V67, P3432
FEREIRA R, 1991, PHYS REV B, V43, P9687
HUARD V, 2000, PHYS REV LETT, V84, P187
KHENG K, 1993, PHYS REV LETT, V71, P1752
KOSSACKI P, 2001, P INT C PHYS SEM OS, P623
MAIALLE MZ, 1993, PHYS REV B, V47, P15776
SCHIELDS AJ, 1995, PHYS REV B, V52, P7841
SIRENKO AA, 1997, PHYS REV B, V56, P2114
VINATTIERI A, 1994, PHYS REV B, V50, P10868
WOJTOWICZ T, 1998, APPL PHYS LETT, V73, P1379
Record creation date
2007-08-31
