CRYSTAL-POTENTIAL DETERMINATION BY INVERSION FOR CENTROSYMMETRIC CRYSTALS

被引：10

作者：

ALLEN, LJ ^{[1
]}

ROSSOUW, CJ ^{[1
]}

机构：

[1] CSIRO,DIV MAT SCI & TECHNOL,CLAYTON,VIC 3168,AUSTRALIA

来源：

ULTRAMICROSCOPY | 1993年 / 48卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/0304-3991(93)90109-B

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

A method to obtain the potential for centrosymmetric crystals from fast electron diffraction data is presented. The technique is illustrated by considering the case of a three-beam systematic row and its extension to five-beam zone-axis geometries. The Fourier coefficients of the crystal potential are formally obtained from the eigenvalues associated with individual partial wave components of the Bloch wave associated with the fast electron. The eigenvalues may be determined from ''spectral'' lines in higher-order Laue zone beams using standard convergent-beam techniques.

引用

页码：341 / 346

页数：6

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