中国物理B ›› 2017, Vol. 26 ›› Issue (11): 117502-117502.doi: 10.1088/1674-1056/26/11/117502

所属专题: TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• TOPICAL REVIEW—Magnetism, magnetic materials, and interdisciplinary research • 上一篇    下一篇

Anisotropic nanocomposite soft/hard multilayer magnets

Wei Liu(刘伟), Zhidong Zhang(张志东)   

  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • 收稿日期:2017-08-23 修回日期:2017-09-30 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:

    Project supported by the State Key Project of Research and Development of China (Grant No.2017YFA0206302),the National Nature Science Foundation of China (Grant Nos.51590883,51331006,and 51471167),and the Chinese Academy of Sciences (Grant No.KJZD-EW-M05-3).

Anisotropic nanocomposite soft/hard multilayer magnets

Wei Liu(刘伟), Zhidong Zhang(张志东)   

  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2017-08-23 Revised:2017-09-30 Online:2017-11-05 Published:2017-11-05
  • Contact: Zhidong Zhang E-mail:zdzhang@imr.ac.cn
  • Supported by:

    Project supported by the State Key Project of Research and Development of China (Grant No.2017YFA0206302),the National Nature Science Foundation of China (Grant Nos.51590883,51331006,and 51471167),and the Chinese Academy of Sciences (Grant No.KJZD-EW-M05-3).

摘要:

Experimental and theoretical researches on nanostructured exchange coupled magnets have been carried out since about 1988.Here,we review the structure and magnetic properties of the anisotropic nanocomposite soft/hard multilayer magnets including some new results and phenomena from an experimental point of view.According to the different component of the oriented hard phase in the nanocomposite soft/hard multilayer magnets,three types of magnets will be discussed:1) anisotropic Nd2Fe14B based nanocomposite multilayer magnets,2) anisotropic SmCo5 based nanocomposite multilayer magnets,and 3) anisotropic rare-earth free based nanocomposite multilayer magnets.For each of them,the formation of the oriented hard phase,exchange coupling,coercivity mechanism,and magnetic properties of the corresponding anisotropic nanocomposite multilayer magnets are briefly reviewed,and then the prospect of realization of bulk magnets on new results of anisotropic nanocomposite multilayer magnets will be carried out.

关键词: anisotropic multilayer magnets, exchange coupling, effective interaction length, coercivity mechanism

Abstract:

Experimental and theoretical researches on nanostructured exchange coupled magnets have been carried out since about 1988.Here,we review the structure and magnetic properties of the anisotropic nanocomposite soft/hard multilayer magnets including some new results and phenomena from an experimental point of view.According to the different component of the oriented hard phase in the nanocomposite soft/hard multilayer magnets,three types of magnets will be discussed:1) anisotropic Nd2Fe14B based nanocomposite multilayer magnets,2) anisotropic SmCo5 based nanocomposite multilayer magnets,and 3) anisotropic rare-earth free based nanocomposite multilayer magnets.For each of them,the formation of the oriented hard phase,exchange coupling,coercivity mechanism,and magnetic properties of the corresponding anisotropic nanocomposite multilayer magnets are briefly reviewed,and then the prospect of realization of bulk magnets on new results of anisotropic nanocomposite multilayer magnets will be carried out.

Key words: anisotropic multilayer magnets, exchange coupling, effective interaction length, coercivity mechanism

中图分类号:  (Fe and its alloys)

  • 75.50.Bb