3-DIMENSIONAL 3-ATOM MODEL FOR COMPUTER-SIMULATION OF IMPACT-COLLISION ION-SCATTERING SPECTROSCOPY

被引：13
作者：
HAYAMI, W
SOUDA, R
AIZAWA, T
ISHIZAWA, Y
机构：
[1] National Institute for Research in Inorganic Materials, Tsukuba, Ibaraki, 305
来源：
SURFACE SCIENCE | 1994年 / 303卷 / 1-2期
关键词：
D O I：
10.1016/0039-6028(94)90636-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new model for computer simulation of impact-collision ion scattering spectroscopy (ICISS) has been developed. By this model, the scattering cross section of the three target atoms arbitrarily placed in the three-dimensional space can be calculated. This made it possible to interpret ICISS data including shadowing and blocking effects from out-of-plane scattering. The method is also effective in the case that the scattering angle is not 180-degrees. As an example, ICISS data of the NbC(111) surface along the [110BAR] azimuth have been analysed. The result of the calculation is in a good agreement with the experimental data. The computational time is sufficiently short, so this method is useful for a quantitative analysis of ICISS data with arbitrary scattering angle and azimuth.
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页码：247 / 252
页数：6
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