Critical behaviour of Sn2P2S6 ferroelectric crystals under high pressure

被引:7
|
作者
Guranich, PP [1 ]
Slivka, AG [1 ]
Shusta, VS [1 ]
Gerzanich, OI [1 ]
Kuritsa, IY [1 ]
机构
[1] Uzhgorod Natl Univ, UA-88000 Uzhgorod, Ukraine
关键词
ferroelectrics; phase transition; pressure; critical behavior; Lifshitz point;
D O I
10.1080/00150190590963318
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The investigation deals with birefringence and compressibility in Sn2P2S6 ferroelectrics crystals across the p, T-diagram. It enables the behaviour of the critical exponents to be determined and the behaviour of the coefficients in the thermodynamic potential expansion for these crystals in the vicinity of the Lifshitz point to be estimated.
引用
收藏
页码:177 / 182
页数:6
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