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Incorporation of Silicon in Low Temperature Molecular Beam Epitaxial GaAs

Published online by Cambridge University Press:  15 February 2011

M. O. Manasreh ,
K. R. Evans ,
C. E. Stutz ,
D. C Look  and
J. Hemsky
M. O. Manasreh
Affiliation:
Solid State Electronics Directorate (WL/ELRA), Wright Laboratory, Wright-Patterson Air Force Base, OH 45433-6543
K. R. Evans
Affiliation:
Solid State Electronics Directorate (WL/ELRA), Wright Laboratory, Wright-Patterson Air Force Base, OH 45433-6543
C. E. Stutz
Affiliation:
Solid State Electronics Directorate (WL/ELRA), Wright Laboratory, Wright-Patterson Air Force Base, OH 45433-6543
D. C Look
Affiliation:
Department of Physics, Wright State University, Dayton, OH 45435
J. Hemsky
Affiliation:
Department of Physics, Wright State University, Dayton, OH 45435
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Abstract

The localized vibrational mode (LVM) of silicon donor (SiGa) in molecular beam epitaxial GaAs layers grown at various temperatures is studied using the infrared absorption technique. It is found that the total integrated absorption of this LVM is decreased as the growth temperature decreases. This finding suggests a nonsubstitutional incorporation of Si in GaAs layers grown at ∼200 °C. On the other hand, an almost complete substitutional incorporation is obtained in GaAs layers grown at temperatures higher that 350 °C. Thermal annealing does not cause any recovery of the SiGa LVMs in present GaAs layers grown at ∼200°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 241 , 1991 , 27
Copyright
Copyright © Materials Research Society 1992

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References

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