Monte Carlo simulation on dielectric and ferroelectric behaviors of relaxor ferroelectrics
文献类型：期刊论文
| 作者 | X. Wang ; J. M. Liu ; H. L. W. Chan ; C. L. Choy |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2004 |
| 卷号 | 95期号:8页码:4282-4290 |
| 关键词 | diffuse phase-transitions random-field domain formation proton-glass perovskites states polarization ceramics defects |
| ISSN号 | 0021-8979 |
| 中文摘要 | The dielectric and ferroelectric behaviors of relaxor ferroelectrics over the ferroelectric transition range are simulated using Monte Carlo simulation. The simulation is based on the Ginzburg-Landau ferroelectric model lattice in which a random distribution of two types of defects (dopants) which will suppress and enhance the local polarization, respectively, is assumed. The simulation reveals an evolution of the ferroelectric transitions from a normal first-order mode toward a diffusive mode, with increasing defect concentration. The simulated lattice configuration shows the microdipole ordered clusters embedded in the matrix of paraelectric phase over a wide range of temperature, a characteristic of relaxor ferroelectrics. The relaxor-like behaviors are confirmed by the lattice free energy, dielectric susceptibility, and ferroelectric relaxation evaluated as a function of the defect concentration. Finally, we present a qualitative comparison of our simulated results with the simulation based on the coarse-grain model [C. C. Su, B. Vugmeister, and A. G. Khachaturyan, J. Appl. Phys. 90, 6345 (2001)]. (C) 2004 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35593]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. Wang,J. M. Liu,H. L. W. Chan,et al. Monte Carlo simulation on dielectric and ferroelectric behaviors of relaxor ferroelectrics[J]. Journal of Applied Physics,2004,95(8):4282-4290. |
| APA | X. Wang,J. M. Liu,H. L. W. Chan,&C. L. Choy.(2004).Monte Carlo simulation on dielectric and ferroelectric behaviors of relaxor ferroelectrics.Journal of Applied Physics,95(8),4282-4290. |
| MLA | X. Wang,et al."Monte Carlo simulation on dielectric and ferroelectric behaviors of relaxor ferroelectrics".Journal of Applied Physics 95.8(2004):4282-4290. |
入库方式： OAI收割
来源：金属研究所
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