Characteristic features of the change of domain structure in mixed [(NH4)1−xRbx]3H(SO4)2 crystals in the vicinity of superprotonic phase transition

被引：0
作者：
L. F. Kirpichnikova
M. Polomska
A. Pietraszko
V. S. Shakhmatov
B. Hilczer
机构：
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
[2] Polish Academy of Sciences,Institute of Molecular Physics
[3] Polish Academy of Sciences,Institute of Low Temperature and Structure Research
[4] Joint Institute for Nuclear Research,undefined
来源：
Crystallography Reports | 2005年 / 50卷
关键词：
Ammonium; Crystal Structure; Phase Transition; Characteristic Feature; Domain Structure;
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中图分类号：
学科分类号：
摘要：
X-ray diffraction measurements of mixed [(NH4)1−xRbx]3H(SO4)2 crystals of different compositions are performed. The characteristics of the change of the domain structure in the vicinity of the supeprotonic-ferroelastic phase transition in crystals of different compositions are studied and compared with the variations of the crystal structure in the course of gradual substitution of ammonium by rubidium. This phase transition is theoretically described based on the phenomenological theory of a high-temperature phase transition.
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页码：108 / 114
页数：6
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