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Gettering or generation of the EL2 defects at dislocations in GaAs?

✍ Scribed by Figielski, T. ;Wosinski, T. ;Makosa, A.

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
834 KB
Volume
131
Category
Article
ISSN
0031-8965

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Photorefractive effect in GaAs at low te
Photorefractive effect in GaAs at low temperature: influence of the metastable state of the EL2 defect
✍ Ph. Delaye; B. Sugg πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 443 KB

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