PHENOMENOLOGICAL THEORY OF THE FERROELASTIC PHASE-TRANSITION IN LICSSO4

被引：3

作者：

HASEBE, K

ASAHI, T

机构：

[1] Department of Physics, Faculty of Liberal Arts, Yamaguchi University

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 12期

关键词：

DIELECTRICS; PHASE TRANSITION; FERROELASTICITY; PHENOMENOLOGICAL THEORY;

D O I：

10.1143/JPSJ.60.4199

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

On the basis of the reported result that the SO4 ion behaves as an order-disorder unit, the phase transition of LiCsSO4 is discussed by the order parameter-shear strain x6 coupled model. Constants appeared in the model free energy are estimated: The value of the fourth order coefficient of order parameter is extremely small. Temperature variation of the spontaneous strains x1s, x2s, x3s and x6s, intensities of Bragg reflections, and the elastic constant c66 are explained by the present model.

引用

页码：4199 / 4202

页数：4

共 7 条

[1]

ALEKSANDROV KS, 1981, FIZ TVERD TELA, V23, P1426

[2]

ALEKSANDROV KS, 1980, FIZ TVERD TELA, V22, P2150

[3] X-RAY STUDY OF LICSSO4 IN CONNECTION WITH ITS FERROELASTIC PHASE-TRANSITION [J].