Theoretical description of the intensity of crystal-truncation-rod scattering modulated by a Bragg reflection

被引：0

作者：

Yashiro, W. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Adv Mat Sci, Grad Sch Frontier Sci, Chiba 2778561, Japan

来源：

BURIED INTERFACE SCIENCES WITH X-RAYS AND NEUTRONS 2010 | 2011年 / 24卷

关键词：

X-RAY-DIFFRACTION; SURFACE-STRUCTURE; STRUCTURE COMPLETION; DYNAMICAL THEORY; STRAIN; PHASE; ATOMS;

D O I：

10.1088/1757-899X/24/1/012020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Modulation of the intensity of crystal-truncation-rod (CTR) scattering caused by a Bragg reflection, which is a multiple-wave X-ray diffraction phenomenon, is generally formulated. This phenomenon is sensitive to the phase of the CTR scattering amplitude, and can be used to investigate mesoscopic-scale small strain field in a crystal, which can be difficult to be found by only intensity measurement of the CTR scattering around a Bragg point. Conditions are presented under which a strain field gives only a slight change in the intensity of CTR scattering but largely affects the phase of it. We demonstrate analytically that, even in such a case, the strain field can be investigated by measurement of the intensity of CTR scattering modulated by a Bragg reflection.

引用

页数：17

共 42 条

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