Effect of Strain in Crystal on the Forbidden Reflections in the Resonant Diffraction of Synchrotron Radiation

被引：1

作者：

Mulyavko, G. T. ^{[1
]}

Ovchinnikova, E. N. ^{[1
]}

Oreshko, A. P. ^{[1
]}

Dmitrienko, V. E. ^{[2
]}

Mukhamedzhanov, E. Kh. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[2] Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 119333, Russia

[3] Natl Res Ctr Kurchatov Inst, Moscow 123182, Russia

来源：

CRYSTALLOGRAPHY REPORTS | 2012年 / 57卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

X-RAY-DIFFRACTION; ATOMIC DISPLACEMENT; TEMPERATURE; KH2PO4; EDGE;

D O I：

10.1134/S1063774511040146

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The effect of strain (either static or caused by long-wavelength acoustic oscillations) on the energy spectrum and the azimuthal dependence of the intensity of "forbidden" reflections in crystals at the energy of incident radiation close to the absorption edge is considered. It is shown that a strain causing a weak change in the unit-cell symmetry may additionally contribute to the tensor atomic factor. Examples of changes in the azimuthal dependence of forbidden-reflection intensity in zinc oxide ZnO and potassium dihydrogen phosphate KH2PO4 are considered.

引用

页码：18 / 23

页数：6

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