Monte-Carlo simulation on the dipole alignment in ferroelectric square lattice

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	Monte-Carlo simulation on the dipole alignment in ferroelectric square lattice
	J. M. Liu; X. Wang; H. L. W. Chan; C. L. Choy
	2004
发表期刊	Materials Science and Engineering B-Solid State Materials for Advanced Technology
ISSN	0921-5107
卷号	113 期号:1 页码:67-72
摘要	The dipole alignment configuration in a multi-domained ferroelectric lattice of cubic symmetry is simulated using the Monte-Carlo method based on the Ginzburg-Landau model. It is revealed that the gradient energy associated with the spatial discontinuity of the dipole alignment near the domain walls results in not only 90degrees-domain configuration, but also distorted dipole alignment. The simulation shows that such a distorted alignment pattern is thermodynamically preferred at low temperature. The effect of the alignment distortion on the ferroelectric phase transition is discussed. It is found that a state number Q = 16 is enough for a reliable simulation of the distorted alignment of dipoles. (C) 2004 Elsevier B.V. All rights reserved.
部门归属	nanjing univ, lab solid state microstruct, nanjing 210093, peoples r china. hong kong polytech univ, dept appl phys, kowloon, hong kong, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, lab solid state microstruct, hankou rd,22, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Ginzburg-landau Model Domain Walls Monte-carlo Simulation Domain Formation Computer-simulation Perovskites Field
URL	查看原文
WOS记录号	WOS:000224050000012
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35458
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. M. Liu,X. Wang,H. L. W. Chan,et al. Monte-Carlo simulation on the dipole alignment in ferroelectric square lattice[J]. Materials Science and Engineering B-Solid State Materials for Advanced Technology,2004,113(1):67-72.
APA	J. M. Liu,X. Wang,H. L. W. Chan,&C. L. Choy.(2004).Monte-Carlo simulation on the dipole alignment in ferroelectric square lattice.Materials Science and Engineering B-Solid State Materials for Advanced Technology,113(1),67-72.
MLA	J. M. Liu,et al."Monte-Carlo simulation on the dipole alignment in ferroelectric square lattice".Materials Science and Engineering B-Solid State Materials for Advanced Technology 113.1(2004):67-72.