Effect of exchange coupling in nanocrystalline CoPt bulk magnets | |
Q. F. Xiao ; E. Bruck ; Z. D. Zhang ; F. R. de Boer ; K. H. J. Buschow | |
刊名 | Journal of Applied Physics
![]() |
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 |
内容类型 | 期刊论文 |
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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论