Superstructure reflections in tilted perovskites

被引：0
|
作者：
Beanland, Richard [1 ]
Sjokvist, Robin [1 ]
机构：
[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
来源：
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES | 2024年 / 80卷
基金：
英国工程与自然科学研究理事会;
关键词：
perovskites; electron diffraction; structure factors; octahedral tilting; ELECTRON-DIFFRACTION;
D O I：
10.1107/S2053273324007113
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The superstructure spots that appear in diffraction patterns of tilted perovskites are well documented and easily calculated using crystallographic software. Here, by considering a distortion mode as a perturbation of the prototype perovskite structure, it is shown how the structure-factor equation yields Boolean conditions for the presence of superstructure reflections. This approach may have some advantages for the analysis of electron diffraction patterns of perovskites.
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页码：387 / 390
页数：4
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