Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process

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	Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process
	W. J. Gong; X. Wang; W. Liu; S. Guo; Z. H. Wang; W. B. Cui; Y. L. Zhu; Y. Q. Zhang; Z. D. Zhang
	2012
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	111 期号:7
摘要	A large coercivity and anisotropy enhancement in perpendicular NdDyFeB (120 nm)/Dy (t(Dy)) films has been realized by a Dy grain-boundary diffusion process. The coercivity H-C and the ratio M-r/M-s reach their maxima at t(Dy) 50 nm, and the magnetic domain sizes increase with increasing t(Dy). The H-C and M-r/M-s increasing with t(Dy) is due to the enhancement of the anisotropy of (Nd, Dy)(2)Fe14B grains by Dy substitution for Nd. The coercivity mechanism is a nucleation-type mechanism. Dy and Nd elements coexist at grain boundaries, forming a (Nd, Dy)-rich phase, which may promote the nucleation of reversal domains. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3679074]
部门归属	[gong, w. j.] chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, inst met res, shenyang 110016, peoples r china.;gong, wj (reprint author), chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wliu@imr.ac.cn
关键词	Magnetic-properties Sintered Magnets Domain-structure Coercivity
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59969
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. J. Gong,X. Wang,W. Liu,et al. Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process[J]. Journal of Applied Physics,2012,111(7).
APA	W. J. Gong.,X. Wang.,W. Liu.,S. Guo.,Z. H. Wang.,...&Z. D. Zhang.(2012).Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process.Journal of Applied Physics,111(7).
MLA	W. J. Gong,et al."Enhancing the perpendicular anisotropy of NdDyFeB films by Dy diffusion process".Journal of Applied Physics 111.7(2012).