Enhanced coercivity in thermally processed (Nd,Dy)(Fe,Co,Nb,B)(5.5)/alpha-Fe nanoscale multilayer magnets

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	Enhanced coercivity in thermally processed (Nd,Dy)(Fe,Co,Nb,B)(5.5)/alpha-Fe nanoscale multilayer magnets
	W. Liu; X. Z. Li; J. P. Liu; X. K. Sun; C. L. Chen; R. Skomski; Z. D. Zhang; D. J. Sellmyer
	2005
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	97 期号:10
摘要	Structural and magnetic properties of laminated (Nd, Dy)(Fe,Co,Nb,B)(5.5)/Fe nanocomposites are investigated. Normally, the addition of the soft phase to the hard phase enhances the remanence but deteriorates the permanent-magnet performance of the material by reducing the coercivity. In the present system, the coercivity increases to 1608 kA/m (20.2 kOe) in thermally processed Nd-Dy-Fe-Co-Nb-B(15 nm)/Fe(4 nm) multilayered nanocomposites, which is higher than that of the single-layer hard-magnetic film. The abnormally high coercivity is achieved by annealing at relatively high temperature, which breaks the laminated structure of the as-deposited multilayer. A likely physical explanation of the enhanced coercivity is the introduction of the domain-wall pinning sites that counteract the inevitable decrease of the nucleation field. (c) 2005 American Institute of Physics.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. univ nebraska, ctr mat res & anal, lincoln, ne 68588 usa. univ texas, dept phys, arlington, tx 76019 usa.;liu, w (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Remanence Enhancement Films Fe Hard
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/40008
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Liu,X. Z. Li,J. P. Liu,et al. Enhanced coercivity in thermally processed (Nd,Dy)(Fe,Co,Nb,B)(5.5)/alpha-Fe nanoscale multilayer magnets[J]. Journal of Applied Physics,2005,97(10).
APA	W. Liu.,X. Z. Li.,J. P. Liu.,X. K. Sun.,C. L. Chen.,...&D. J. Sellmyer.(2005).Enhanced coercivity in thermally processed (Nd,Dy)(Fe,Co,Nb,B)(5.5)/alpha-Fe nanoscale multilayer magnets.Journal of Applied Physics,97(10).
MLA	W. Liu,et al."Enhanced coercivity in thermally processed (Nd,Dy)(Fe,Co,Nb,B)(5.5)/alpha-Fe nanoscale multilayer magnets".Journal of Applied Physics 97.10(2005).