Spectroscopic ellipsometry and Raman scattering study of the annealing behavior of Be‐implanted GaAs
作者:
P. Chambon,
M. Erman,
J. B. Theeten,
B. Pre´vot,
C. Schwab,
期刊:
Applied Physics Letters
(AIP Available online 1984)
卷期:
Volume 45,
issue 4
页码: 390-392
ISSN:0003-6951
年代: 1984
DOI:10.1063/1.95231
出版商: AIP
数据来源: AIP
摘要:
The annealing of the lattice damage induced by Be‐ion implantation in GaAs has been studied by spectroscopic ellipsometry and Raman scattering after each step of an isochronal thermal treatment. These two optical (i.e., nondestructive) techniques are shown to be very sensitive both to the lattice recovery and to the electrical activation of the implants. It has been observed that the latter process occursafterthe lattice perfection recovery atT=550 °C, while for the ultimate annealing temperatures (T>750 °C) a significant Be redistribution takes place resulting in a decrease of the electrical activity which is confirmed by differential Hall effect measurements.
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