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 | |
刊名 | Journal of Applied Physics
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2005 | |
卷号 | 97期号:10 |
关键词 | remanence enhancement films fe hard |
ISSN号 | 0021-8979 |
中文摘要 | 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. |
原文出处 | |
公开日期 | 2012-05-17 |
内容类型 | 期刊论文 |
源URL | [http://ir.imr.ac.cn/handle/321006/40008] ![]() |
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 | 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). |
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