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Coercivity mechanism and effect of Dy element in anisotropic LaPrFeB multilayers with Dy diffusion
Li, Y.1,2; Zhao, X. T.1; Liu, W.1; Ma, J.1,2; Liu, L.1,2; Song, Y. H.1,2; Deng, W. Y.3; Qi, L. J.3; Zhao, X. G.1; Zhang, Z. D.1
Corresponding AuthorLiu, W.(wliu@imr.ac.cn)
2020-07-28
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume128Issue:4Pages:8
AbstractIn composite magnets, an in-depth understanding of magnetization reversal behaviors promotes optimizing the structure design of a magnet and improving its performance. In this work, the perpendicular magnetic anisotropic Ta/La-Pr-Fe-B/Dy/La-Pr-Fe-B/Ta multilayers have been prepared by adjusting the thickness of the Dy layer. The domain reversal evolutionary procedure has been investigated in different aspects including the characterization of domain morphology, micromagnetic analysis, and irreversible reversal distribution. It is confirmed that the nucleation mechanism is dominant in determining the coercivity of the multilayers with Dy diffusion. Dy diffusion helps to enhance the coercivity of the multilayers. The formation of Dy-containing hard magnetic phases and rare-earth-rich grain boundary phases by adding the Dy element leads to a strong nucleation field and isolation of hard magnetic phase grains, respectively. Our results aid in the understanding of magnetization reversal behaviors and enhance the magnetic properties of highly abundant rare-earth permanent magnetic multilayer films with the doping element.
Funding OrganizationState Key Project of Research and Development of China ; National Nature Science Foundation of China ; Major Science and Technology Program of Liaoning Province of China
DOI10.1063/5.0014130
Indexed BySCI
Language英语
Funding ProjectState Key Project of Research and Development of China[2017YFA0206302] ; National Nature Science Foundation of China[51590883] ; National Nature Science Foundation of China[51971219] ; Major Science and Technology Program of Liaoning Province of China[2019JH1/10100016]
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000559770300001
PublisherAMER INST PHYSICS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140205
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, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Shenyang Gen Magnet Co Ltd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, Y.,Zhao, X. T.,Liu, W.,et al. Coercivity mechanism and effect of Dy element in anisotropic LaPrFeB multilayers with Dy diffusion[J]. JOURNAL OF APPLIED PHYSICS,2020,128(4):8.
APA Li, Y..,Zhao, X. T..,Liu, W..,Ma, J..,Liu, L..,...&Zhang, Z. D..(2020).Coercivity mechanism and effect of Dy element in anisotropic LaPrFeB multilayers with Dy diffusion.JOURNAL OF APPLIED PHYSICS,128(4),8.
MLA Li, Y.,et al."Coercivity mechanism and effect of Dy element in anisotropic LaPrFeB multilayers with Dy diffusion".JOURNAL OF APPLIED PHYSICS 128.4(2020):8.
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