Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation

doi:10.1016/j.commatsci.2004.12.034

IMR OpenIR

	Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation
	Liu, JM ; Wang, KF ; Lau, ST ; Chan, HLW ; Choy, CL
通讯作者	Liu, JM(liujm@nju.edu.cn)
	2005
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	33 期号:1-3 页码:66-73
摘要	We present a Monte-Carlo simulation on the dipole alignment configuration and dielectric susceptibility of a defective ferroelectric lattice with randomly distributed lattice defects in the framework of the Ginzburg-Landau theory. These defects are assumed to suppress locally the electric dipoles. It is found that with increasing defect concentration the dipole lattice configuration evolves from a normal ferroelectric state to a two-phase coexisted state, where highly polarized regions are embedded in a paraelectric matrix. The dielectric susceptibility in lattices with various defect distributions is studied. The simulated results are used to explain the measured dielectric response in ferroelectric copolymers containing defects induced by proton irradiation. (c) 2004 Elsevier B.V. All rights reserved.
关键词	dielectric susceptibility random defect model ferroelectric relaxor
DOI	10.1016/j.commatsci.2004.12.034
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000228020500011
出版者	ELSEVIER SCIENCE BV
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/83074
通讯作者	Liu, JM
作者单位	1.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China 2.Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Liu, JM,Wang, KF,Lau, ST,et al. Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation[J]. COMPUTATIONAL MATERIALS SCIENCE,2005,33(1-3):66-73.
APA	Liu, JM,Wang, KF,Lau, ST,Chan, HLW,&Choy, CL.(2005).Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation.COMPUTATIONAL MATERIALS SCIENCE,33(1-3),66-73.
MLA	Liu, JM,et al."Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation".COMPUTATIONAL MATERIALS SCIENCE 33.1-3(2005):66-73.