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Coercivity enhancement of sputtered (La,Nd,Dy)-Fe–Co–B multilayers by inserting Ta space layers
Liu,L1,2; Liu,W1; Song,Y H1,2; Zhao,X T1; Chang,Y3; Li,S K1,2; Liang,Y M1,2; Li,Y1,2; Zhao,X G1; Zhang,Z D1
2019-02-04
Source PublicationJournal of Physics D: Applied Physics
ISSN0022-3727
Volume52Issue:14
AbstractAbstract 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.
Keywordpermanent magnets domain structure in magnetic films high-coercivity magnetic interactions
DOI10.1088/1361-6463/ab00d4
Language英语
WOS IDIOP:0022-3727-52-14-ab00d4
PublisherIOP Publishing
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80530
Collection中国科学院金属研究所
Affiliation1.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
Recommended Citation
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).
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