Bragg diffraction of X-rays by single crystals with large microdefects II. Dynamical diffuse scattering amplitude and intensity

被引：0

作者：

Olikhovskii, SI ^{[1
]}

Molodkin, VB ^{[1
]}

Kislovskii, EN ^{[1
]}

Len, EG ^{[1
]}

Pervak, EV ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Met Phys, UA-03680 Kiev 142, Ukraine

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2002年 / 231卷 / 01期

关键词：

D O I：

10.1002/1521-3951(200205)231:1<199::AID-PSSB199>3.0.CO;2-Y

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Dynamical wave fields formed in imperfect single crystals by diffusely scattered waves have been considered in the two-beam case of diffraction for the homogeneous distribution of microdefects. with large sizes. Wave vectors of the constituent plane waves include the complex dispersion corrections accounting for multiple diffuse scattering processes. The corresponding dynamical diffuse scattering amplitudes and cross-sections in vacuum have been derived for both reflection and transmission directions. The diffuse component of crystal reflectivity has been calculated in the approximation of semiinfinite crystal and has been integrated over exit angles for two microdefect types: spherical clusters and prismatic dislocation loops. The obtained formula for the diffuse reflectivity has been analyzed and compared with the known kinematical one.

引用

页码：199 / 212

页数：14

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