Effect of exchange coupling in nanocrystalline CoPt bulk magnets
文献类型：期刊论文
| 作者 | Q. F. Xiao ; E. Bruck ; Z. D. Zhang ; F. R. de Boer ; K. H. J. Buschow |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2002 |
| 卷号 | 91期号:10页码:8819-8821 |
| 关键词 | alloy |
| ISSN号 | 0021-8979 |
| 中文摘要 | The effect of the atomic disorder-order transformation on remanence enhancement and coercivity in isotropic CoPt magnets has been studied by isothermal annealing at 675 degreesC, well below the transformation temperature, for 10-80 min after quenching from 900 degreesC. The results of x-ray diffraction, alternating-current susceptibility, and magnetization measurements indicate that the strong remanence enhancement effect originates from exchange coupling between the face-centered-tetragonal ordered hard-magnetic precipitated phase and the face-centered-cubic disordered soft-magnetic matrix phase during the initial ordering transformation. The nonuniform distribution of the magnetic anisotropy results in a lower reversibility, unlike the so-called exchange spring magnet. (C) 2002 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36465]  |
| 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 | Q. F. Xiao,E. Bruck,Z. D. Zhang,et al. Effect of exchange coupling in nanocrystalline CoPt bulk magnets[J]. Journal of Applied Physics,2002,91(10):8819-8821. |
| APA | Q. F. Xiao,E. Bruck,Z. D. Zhang,F. R. de Boer,&K. H. J. Buschow.(2002).Effect of exchange coupling in nanocrystalline CoPt bulk magnets.Journal of Applied Physics,91(10),8819-8821. |
| MLA | Q. F. Xiao,et al."Effect of exchange coupling in nanocrystalline CoPt bulk magnets".Journal of Applied Physics 91.10(2002):8819-8821. |
入库方式： OAI收割
来源：金属研究所
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