Structure and magnetic properties of Sm-Co(x nm)/Co (6 nm) multi-layered nanocomposite films
文献类型：期刊论文
| 作者 | C. J. Yang ; J. S. Han ; C. Y. You ; Z. D. Zhang |
| 刊名 | Journal of the Korean Physical Society
 |
| 出版日期 | 2003 |
| 卷号 | 42期号:3页码:401-407 |
| 关键词 | nanocomposite films multilayer exchange coupling transition-metal films thin-films permanent-magnets sm-co coercivity phases noise media |
| ISSN号 | 0374-4884 |
| 中文摘要 | A detailed analysis of the structures and magnetic properties has been made for ten-layered films of [Sm-Co(x nm)/Co(6 nm)]. By studying the dependences of the coercivity on annealing temperature (T-alpha) and time (t(alpha)) for the various films, we deduced an optimal heat-treatment with a T-alpha about 570 degreesC and t(alpha) of about 20 min. Applying a magnetic field during annealing was harmful to the coercivity due to a reduction in the number of domain wall pinning sites and to grain coarsening. With decreasing thickness of the Sm-Co layer, the dependence of the coercivity on the applied field became less pronounced. The Henkel plot, deltam, of the-multilayered films showed the comparative magnitudes of exchange interaction for quite different coercivity values, and suggested that the increase in the coercivity might be due to improving the, pinning effectiveness, not to enhancement of the exchange coupling. Magnetic viscosity measurements indicated that a lower switching field corresponded to a larger coercivity due to more effective pinning of the domain walls. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36102]  |
| 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 | C. J. Yang,J. S. Han,C. Y. You,et al. Structure and magnetic properties of Sm-Co(x nm)/Co (6 nm) multi-layered nanocomposite films[J]. Journal of the Korean Physical Society,2003,42(3):401-407. |
| APA | C. J. Yang,J. S. Han,C. Y. You,&Z. D. Zhang.(2003).Structure and magnetic properties of Sm-Co(x nm)/Co (6 nm) multi-layered nanocomposite films.Journal of the Korean Physical Society,42(3),401-407. |
| MLA | C. J. Yang,et al."Structure and magnetic properties of Sm-Co(x nm)/Co (6 nm) multi-layered nanocomposite films".Journal of the Korean Physical Society 42.3(2003):401-407. |
入库方式： OAI收割
来源：金属研究所
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