The temperature isotropic point inside ferroelectric phase of Rb2Cd2(SO4)3 crystals

被引：0
|
作者：
Vlokh, R
Skab, I
Guzandrow, A
Mogylyak, I
Smagliy, S
Uesu, Y
机构：
[1] Inst Phys Opt, UA-290005 Lviv, Ukraine
[2] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 169, Japan
来源：
FERROELECTRICS | 2000年 / 237卷 / 1-4期
关键词：
langbeinites; birefringence; temperature isotropic point; Rb2Cd2(SO4)(3); weak ferroelectric;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The investigations of temperature dependence of the birefringence in ferroelectric phases of Rb2Cd2(SO4)(3) crystals, which belong to langbeinite family were carried out. The temperature isotropic point (temperature point of the absence of linear birefringence) in Rb2Cd2(SO4)(3) crystals in monoclinic phase at T-i = 113K connected with the change of spontaneous polarization sign was experimentally founded. The existence of temperature isotropic point was explained on the base of electrooptical effect induced by spontaneous polarization. It was shown that Rb2Cd2(SO4)(3) crystals belong to the group of weak ferroelectrics.
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页码：489 / 495
页数：7
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