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

doi:10.1088/1361-6463/ab00d4

IMR OpenIR

	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
	2019-02-04
发表期刊	Journal of Physics D: Applied Physics
ISSN	0022-3727
卷号	52 期号:14
摘要	Abstract 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.
关键词	permanent magnets domain structure in magnetic films high-coercivity magnetic interactions
DOI	10.1088/1361-6463/ab00d4
语种	英语
WOS记录号	IOP:0022-3727-52-14-ab00d4
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/80530
专题	中国科学院金属研究所
作者单位	1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China 2.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, People’s Republic of China 3.School of Materials Science and Engineering, Beihang University, Beijing 100191, People’s Republic of China
推荐引用方式 GB/T 7714	Liu,L,Liu,W,Song,Y H,等. 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).
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).
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).