| 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 Author | Liu, W.(wliu@imr.ac.cn) |
| 2019-04-03 | |
| Source Publication | JOURNAL OF PHYSICS D-APPLIED PHYSICS
 |
| ISSN | 0022-3727 |
| Volume | 52Issue:14Pages:9 |
| 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. |
| Keyword | permanent magnets domain structure in magnetic films high-coercivity magnetic interactions |
| Funding Organization | State Key Project of Research and Development of China ; National Nature Science Foundation of China ; Chinese Academy of Sciences |
| DOI | 10.1088/1361-6463/ab00d4 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Physics |
| WOS Subject | Physics, Applied |
| WOS ID | WOS:000457719800001 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131528 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, W. |
| Affiliation | 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 |
| 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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