Coercivity enhancement of sputtered (La,Nd,Dy)-Fe-Co-B multilayers by inserting Ta space layers

doi:10.1088/1361-6463/ab00d4

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	Coercivity enhancement of sputtered (La,Nd,Dy)-Fe-Co-B multilayers by inserting Ta space layers
	Liu, L.1,2; Liu, W.1; Song, Y. H.1,2; Zhao, X. T.1; Chang, Y.3; Li, S. K.1,2; Liang, Y. M.1,2; Li, Y.1,2; Zhao, X. G.1; Zhang, Z. D.1
刊名	JOURNAL OF PHYSICS D-APPLIED PHYSICS
	2019-04-03
卷号	52 期号:14 页码:9
关键词	permanent magnets domain structure in magnetic films high-coercivity magnetic interactions
ISSN号	0022-3727
DOI	10.1088/1361-6463/ab00d4
通讯作者	Liu, W.(wliu@imr.ac.cn)
英文摘要	Excellent magnetic properties of permanent magnets can be achieved by designing proper microstructure. In this work, we prepared (La-Nd-Dy)-Fe-Co-B single-layer and multilayers with different structures and found that the coercivity obtained for single-layer is 1.45 T and the optimum value for the coercivity of multilayer films increases to 1.95 T by inserting the metal Ta space layers. The enhancement of the coercivity in multilayer films originates from decoupling between Nd-Fe-B grains inserted by Ta space layers, less nucleation centers and the long-ranged magnetostatic interactions among different 2:14:1-type grains. Combining the micromagnetic analysis of the temperature dependence of coercivity and the magnetic domain evolutionary process at room temperature, the nucleation mechanism is confirmed as the dominant. This work is helpful for understanding the effect of microstructure on magnetic properties and the coercivity mechanism of high abundant rare earth permanent magnetic films.
资助项目	State Key Project of Research and Development of China[2016YFB0700901] ; National Nature Science Foundation of China[51590883] ; National Nature Science Foundation of China[51471167] ; Chinese Academy of Sciences[KJZD-EW-M05-3]
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000457719800001
资助机构	State Key Project of Research and Development of China ; National Nature Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131527]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, W.
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Liu, L.,Liu, W.,Song, Y. H.,et al. Coercivity enhancement of sputtered (La,Nd,Dy)-Fe-Co-B multilayers by inserting Ta space layers[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2019,52(14):9.
APA	Liu, L..,Liu, W..,Song, Y. H..,Zhao, X. T..,Chang, Y..,...&Zhang, Z. D..(2019).Coercivity enhancement of sputtered (La,Nd,Dy)-Fe-Co-B multilayers by inserting Ta space layers.JOURNAL OF PHYSICS D-APPLIED PHYSICS,52(14),9.
MLA	Liu, L.,et al."Coercivity enhancement of sputtered (La,Nd,Dy)-Fe-Co-B multilayers by inserting Ta space layers".JOURNAL OF PHYSICS D-APPLIED PHYSICS 52.14(2019):9.