SINGULARITY OF THE FREE-ENERGY OF THE FERROELECTRICS TRIGLYCINE SULFATE AND TRIGLYCINE SELENATE

被引：16

作者：

FUGIEL, B

WESTWANSKI, B

ZIOLO, J

PAWLIK, J

PARDALA, M

机构：

[1] Institute of Physics, Silesian University, PL-40-007 Katowice

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.42.8557

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The susceptibility scaling function for the ferroelectrics triglycine sulfate (TGS) and triglycine selenate (TGSe) was studied in the paraelectric phase. It was shown that neither mean-field theory nor the approximate model derived from the Larkin-Khmelnitsky theory accurately described the paraelectric-ferroelectric phase transition. Arguments are presented to support the thesis that the critical properties of TGS and TGSe cannot be described based on an analytical form of the free energy. © 1990 The American Physical Society.

引用

页码：8557 / 8560

页数：4

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