Charged exciton dynamics in GaAs quantum wells

G Finkelstein; Vladimir Y. Umansky; Israel Bar-Joseph; V Ciulin; S Haacke; JD Ganiere; B Deveaud

doi:10.1103/PhysRevB.58.12637

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Charged exciton dynamics in GaAs quantum wells

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Charged exciton dynamics in GaAs quantum wells

G Finkelstein, Vladimir Y. Umansky, Israel Bar-Joseph, V Ciulin, S Haacke, JD Ganiere and B Deveaud

Physical Review B, Vol.58(19), pp.12637-12640

Nov/1998

DOI: https://doi.org/10.1103/PhysRevB.58.12637

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Abstract

We study the dynamics of the charged and neutral excitons in a modulation-doped GaAs quantum well by time-resolved photoluminescence under a resonant excitation. The radiative lifetime of the charged exciton is found to be surprisingly short, 60 ps. This time is temperature independent between 2 and 10 K, and increases by a factor of 2 at 6 T. We discuss our findings in view of present theories of exciton radiative decay. [S0163-1829(98)03143-9].

Details

Title: Charged exciton dynamics in GaAs quantum wells
Creators: G Finkelstein (null)
Vladimir Y. Umansky (null) - 972WIS_INST___90
Israel Bar-Joseph (null) - 972WIS_INST___90
V Ciulin (null)
S Haacke (null)
JD Ganiere (null)
B Deveaud (null)
Resource Type: Journal article
Publication Details: Physical Review B, Vol.58(19), pp.12637-12640; Nov/1998
Number of pages: 4
Language: English
DOI: https://doi.org/10.1103/PhysRevB.58.12637
Record Identifier: 993266782403596

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