Study of the influence of higher-order Laue zones on the exit wavefunction
Liu Qiu-Xiang (刘秋香)a, Yang Qi-Bin (杨奇斌)a, Wang Yuan-Ming (王元明)b
a Institute of Modern Physics, Xiangtan University, Xiangtan 411105, China; b Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
Abstract Based on an analytical expression of electron dynamical diffraction derived recently, the exit wavefunctions of non-periodic samples have been calculated. The results have shown that the amplitude and phase obtained by the analytical expression were in good agreement with those obtained using the multi-slice method. Besides, the influence of the higher-order Laue zone on the wavefunction for different sample thickness was studied in detail and the results showed that the exit wavefunction is dominated by the zero-order Laue zone. When the sample is very thin, the influence of the higher-order Laue zone should be considered.
Received: 05 December 2000
Revised: 21 January 2002
Accepted manuscript online:
PACS:
61.05.jd
(Theories of electron diffraction and scattering)
Fund: Project supported by the foundation of Hunan Education Commission, China (Grant No 99C103) and by the National Natural Science Foundation of China (Grant No 10074052).
Cite this article:
Liu Qiu-Xiang (刘秋香), Yang Qi-Bin (杨奇斌), Wang Yuan-Ming (王元明) Study of the influence of higher-order Laue zones on the exit wavefunction 2002 Chinese Physics 11 587
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