Ferroelectric phase transition of a finite alternating superlattice

被引：4
|
作者：
Yang Xiong
Kuang Xiao-Yu [1 ]
Wang Ying
机构：
[1] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China
[2] Acad Sinica, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
[3] Sichuan Univ, Dept Optoelect, Chengdu 610065, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2007年 / 141卷 / 12期
关键词：
ferroelectrics; phase transitions;
D O I：
10.1016/j.ssc.2007.01.008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The phase transition properties of ferroelectric supperlattice with finite alternating layers have been investigated by using the transverse Ising model within the mean field approximation. The effects of surface modification are introduced on the assumption that the exchange interaction and transverse field parameters on the top surface are different from those in other layers of the superlattice. The phase diagrams are described in two different ways. The results indicate that the features of the phase diagrams can be greatly modified by changing the transverse Ising model parameters. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：671 / 674
页数：4
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