We report on time-resolved photoluminescence studies of charged and neutral excitons in a modulation doped GaAs quantum well under resonant excitation and high magnetic field. The radiative lifetime of the charged exciton is rather short, 60 ps at zero held, and is found to increase by a factor of similar to 2 up to 7 T. The short lifetimes suggest that, under magnetic field, the exciton bound in the trion is delocalized. (C) 1998 Elsevier Science B.V. All rights reserved.
Title
Dynamics of charged excitons in GaAs quantum wells under high magnetic field
Published in
Physica B
Volume
258
Issue
1-2
Pages
466-469
Date
1998
ISSN
0921-4526
Note
Swiss Fed Inst Technol, Inst Micro & Optoelect, Dept Phys, CH-1015 Lausanne, Switzerland. Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel. Ciulin, V, Swiss Fed Inst Technol, Inst Micro & Optoelect, Dept Phys, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 152KE
Cited Reference Count: 15
Cited References:
ANDREANI LC, 1995, CONFINED ELECT PHOTO, P57
BUHMANN H, 1995, PHYS REV B, V51, P7969
DEVEAUD B, 1991, PHYS REV LETT, V67, P2355
FINKELSTEIN G, IN PRESS PHYS REV B
FINKELSTEIN G, 1995, PHYS REV LETT, V74, P976
FINKELSTEIN G, 1996, PHYS REV B, V53, P12593
FINKELSTEIN G, 1996, PHYS REV B, V53, R1709
KHENG K, 1993, PHYS REV LETT, V71, P1752
OKAMURA H, UNPUB
RON A, 1996, SOLID STATE COMMUN, V97, P741
SHIELDS AJ, 1995, PHYS REV B, V51, P18049
SHIELDS AJ, 1995, PHYS REV B, V52, P7841
STARK JB, 1990, PHYS REV LETT, V65, P3033
STEBE B, 1989, SUPERLATTICE MICROST, V5, P545
VINATTIERI A, 1994, PHYS REV B, V50, P10868
Record creation date
2007-08-31
