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

• 来源期刊: 中国物理（英文版）
• 学科: 物理学
• 关键词: dynamical electron diffraction electron crystallography higher-order Laue zone
• 年，卷（期）: 2002,（6）
• 页码范围: 587-591
• 页数: 5页
• 分类号: O4
• 语种: 英文

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.