Time-domain spectrum of dielectric relaxation in relaxor ferroelectrics: Monte Carlo simulation

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	Time-domain spectrum of dielectric relaxation in relaxor ferroelectrics: Monte Carlo simulation
	J. M. Liu; S. Dong; H. L. W. Chan; C. L. Choy
	2006
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	18 期号:39 页码:8973-8985
摘要	We perform Monte Carlo simulation on the dielectric relaxation behaviour of a model relaxor ferroelectric, based on the Ginzburg-Landau theory of ferroelectrics with dipole-defect induced random field. The coexistence of ferroelectric nanoclusters and paraelectric matrix is demonstrated. It is found that the time-domain spectrum for dielectric relaxation below the ferroelectric transition point exhibits a multi-peaked pattern rather than the diffusive single-peaked pattern, indicating the existence of multi-characteristic times for the dielectric relaxation. The extended multi-peaked time-domain spectrum is responsible for the diffusive ferroelectric transitions and frequency dispersion of the dielectric relaxation, usually observed for relaxor ferroelectrics.
部门归属	hong kong polytech univ, dept appl phys, hong kong, hong kong, peoples r china. nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), hong kong polytech univ, dept appl phys, hong kong, hong kong, peoples r china;liujm@nju.edu.cn
关键词	Lead Magnesium Niobate Random-field Dependence Behavior Model Glass Susceptibility Permittivity Polarization Perovskites
URL	查看原文
WOS记录号	WOS:000241269800029
引用统计	被引频次：4[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/321006/34365
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. M. Liu,S. Dong,H. L. W. Chan,et al. Time-domain spectrum of dielectric relaxation in relaxor ferroelectrics: Monte Carlo simulation[J]. Journal of Physics-Condensed Matter,2006,18(39):8973-8985.
APA	J. M. Liu,S. Dong,H. L. W. Chan,&C. L. Choy.(2006).Time-domain spectrum of dielectric relaxation in relaxor ferroelectrics: Monte Carlo simulation.Journal of Physics-Condensed Matter,18(39),8973-8985.
MLA	J. M. Liu,et al."Time-domain spectrum of dielectric relaxation in relaxor ferroelectrics: Monte Carlo simulation".Journal of Physics-Condensed Matter 18.39(2006):8973-8985.