Statistical equilibrium in particle channeling
作者:
B. A. Davidson,
L. C. Feldman,
J. Bevk,
J. P. Mannaerts,
期刊:
Applied Physics Letters
(AIP Available online 1987)
卷期:
Volume 50,
issue 3
页码: 135-137
ISSN:0003-6951
年代: 1987
DOI:10.1063/1.97694
出版商: AIP
数据来源: AIP
摘要:
We have used a unique sample configuration consisting of thin, epitaxial films of Ge sandwiched within a Si(100) lattice to explore the conditions for statistical equilibrium in particle channeling. Indications of nonequilibrium came about from a strong asymmetry in the off‐normal angular scans. We find the depth necessary to achieve statistical equilibrium to be ∼2200 A˚ for 1.8 MeV He particle channeling along the Si〈110〉 direction. This measurement provides a useful guide for the interpretation of channeling experiments in a variety of near‐surface applications.
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