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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
Corresponding AuthorLiu, W.(wliu@imr.ac.cn)
2019-04-03
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
Volume52Issue:14Pages:9
AbstractExcellent 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
Funding OrganizationState Key Project of Research and Development of China ; National Nature Science Foundation of China ; Chinese Academy of Sciences
DOI10.1088/1361-6463/ab00d4
Indexed BySCI
Language英语
Funding ProjectState 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 Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000457719800001
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/131528
Collection中国科学院金属研究所
Corresponding AuthorLiu, W.
Affiliation1.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
Recommended Citation
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.
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