中国物理B ›› 2002, Vol. 11 ›› Issue (6): 587-591.doi: 10.1088/1009-1963/11/6/313

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Study of the influence of higher-order Laue zones on the exit wavefunction

刘秋香1, 杨奇斌1, 王元明2   

  1. (1)Institute of Modern Physics, Xiangtan University, Xiangtan 411105, China; (2)Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
  • 收稿日期:2000-12-05 修回日期:2002-01-21 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    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).

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   

  1. 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
  • Received:2000-12-05 Revised:2002-01-21 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    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).

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摘要： 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.

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.

Key words: dynamical electron diffraction, electron crystallography, higher-order Laue zone

中图分类号:  (Theories of electron diffraction and scattering)

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