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EL2-like defects in low temperature GaAs

✍ Scribed by G. Kowalski; A. Kurpiewski; M. Kamińska; E.R. Weber


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
292 KB
Volume
22
Category
Article
ISSN
0921-5107

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We present here a theoretical and experimental analysis ofphotorefractive two-beam coupling in undoped GaAs as a function of temperature. Three major features are experimentally observed, firstly, a change of sign of the photorefractive beam coupling gain around 150 K, secondly, an enhancement of th