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Time-resolved photoluminescence study of InGaAs/GaAs quantum wells on (111)B GaAs substrates under magnetic fields

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1376401· OSTI ID:40204195

The exciton dynamics in In{sub x}Ga{sub 1{minus}x}As/GaAs quantum wells grown on (111)B and (100) GaAs substrates were studied by time-resolved photoluminescence (PL) under magnetic fields in a Faraday configuration. We have found that the piezoelectric fields in (111)B samples affect the transient behavior of the PL spectra. Compared with the reference (100) sample, we have found that the strong piezoelectric fields, as well as the magnetic fields, cause a slower spin{endash}flip process in (111)B strained quantum wells. {copyright} 2001 American Institute of Physics.

Sponsoring Organization:
(US)
OSTI ID:
40204195
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 12 Vol. 89; ISSN 0021-8979
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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