Structural study of Pb(Mg1/3Nb2/3)O-3 at low temperatures

被引：5
|
作者：
Chernyshev, VV
Zhukov, SG
Vakhrushev, SB
Schenk, H
机构：
[1] AF IOFFE PHYS TECH INST,ST PETERSBURG 194021,RUSSIA
[2] UNIV AMSTERDAM,CRYSTALLOG LAB,NL-1018 WV AMSTERDAM,NETHERLANDS
来源：
FERROELECTRICS LETTERS SECTION | 1997年 / 23卷 / 1-2期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1080/07315179708203405
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The structure of the relaxer ferroelectric Pb(Mg1/3Nb2/3)O-3 crystal was studied with the X-ray single crystal diffraction at 110, 224 and 293 K. The remarkable redistribution of the reflections intensifies at low temperatures was observed. The structure of the low temperature phase is described with the model of the substantially nonuniform displacements of the lead ions using the derived analytical expression of the scattering form-factor. The structure refinement shows the good agreement between the model and the experimental data at low temperatures.
引用
收藏
页码：45 / 53
页数：9
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