Compositional dependence of the Curie temperature in mixed ferroelectrics: effective field approach

被引：12

作者：

Ali, RA ^{[1
]}

Wang, CL ^{[1
]}

Yuan, M ^{[1
]}

Wang, Y ^{[1
]}

Zhong, WL ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys & Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 129卷 / 06期

关键词：

ferroelectrics; phase transitions;

D O I：

10.1016/j.ssc.2003.11.005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An effective field approach is used to investigate the compositon depedence of the Curie temperature T-C(x) for mixed ferroelectric systems of partially deuterated triglycine sulfate (TGS)(1-x)(DTGS)(x), and partially deuterated triglycine selenate (TGSe)(1-x)(DTGSe)(x). We found that the coupling strength between the two sub systems is weaker than the average value of the effective field within each system, this can account for the non-linearity of composition dependence of the Curie temperature in these mixed ferroelectric systems. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：365 / 367

页数：3

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