Theoretical study of the intensity dependence of total effective trap density in photorefractive crystals
文献类型：期刊论文
| 作者 | Chi, MJ ; Dou, SX ; Ye, PX |
| 刊名 | ACTA PHYSICA SINICA-OVERSEAS EDITION
 |
| 出版日期 | 1999 |
| 卷号 | 8期号:9页码:664 |
| 关键词 | CHARGE-TRANSPORT MODEL DOPED BARIUM-TITANATE EXPLANATION BATIO3 |
| ISSN号 | 1004-423X |
| 通讯作者 | Chi, MJ (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The magnetic properties and narrow domain are investigated. The substitution of silicon for iron leads to the reduction of the lattice parameters, and the significant increase of the Curie temperature from 413 K to 526 K, The mean field analysis show that the Fe-Fe exchange interaction is much strengthened while the Tb-Fe one is slightly weakened by the introduction of silicon. The anisotropy constants up to the sixth order are calculated by fitting the magnetization process of the samples with the different silicon contents at 1.5 K under the field up to 5.2 x 10(6) A/m. At low temperature, the intrinsic coercivity has been observed. The domain wall energy and wall thickness were calculated by counting in three anisotropy constants up to the sixth order and the results indicated that the coercivity is caused by the typical narrow domain wall pinning-dominated process. The domain wall energy and wall thickness were also calculated based on the Egami thermal-activation model and the empirical relationship for H-c(T). The mechanism for the intrinsic coercivity was discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45659]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chi, MJ,Dou, SX,Ye, PX. Theoretical study of the intensity dependence of total effective trap density in photorefractive crystals[J]. ACTA PHYSICA SINICA-OVERSEAS EDITION,1999,8(9):664. |
| APA | Chi, MJ,Dou, SX,&Ye, PX.(1999).Theoretical study of the intensity dependence of total effective trap density in photorefractive crystals.ACTA PHYSICA SINICA-OVERSEAS EDITION,8(9),664. |
| MLA | Chi, MJ,et al."Theoretical study of the intensity dependence of total effective trap density in photorefractive crystals".ACTA PHYSICA SINICA-OVERSEAS EDITION 8.9(1999):664. |
入库方式： OAI收割
来源：物理研究所
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