| Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer | |
| Ye, Z. X.1,2; Zhao, X. T.1; Liu, W.1; Liu, L.1; Wu, J. X.1,2; Li, Y.1,2; Ma, J.1,2; Ju, H. Z.1,2; Song, Y. H.2; Zhanga, Z. D.1 | |
| Corresponding Author | Zhao, X. T.(xtzhao@imr.ac.cn) ; Liu, W.(wliu@imr.ac.cn) |
| 2023-04-01 | |
| Source Publication | SURFACES AND INTERFACES
 |
| ISSN | 2468-0230 |
| Volume | 37Pages:10 |
| Abstract | The perpendicular magnetic anisotropy of Nd-Fe-B films decreases when the film thickness increases above a critical value, owing to the formation of the in-plane texture. To avoid this dilemma, the influences of Ta spacer layers on the microstructure and magnetic properties of Nd-Dy-Fe-Co-B thick films are systematically investi-gated by varying the number and thickness of Ta spacer layers. With increasing the number and thickness of Ta spacer layers, a great enhancement of the perpendicular magnetic anisotropy is found, while the coercivity maintains around 2 T. According to the analysis of microstructural results, some interfaces are formed, with the Nd-Fe-B columnar crystal and the Nd element aggregation area being the two sides of the interface. It is found that the Ta spacer layer facilitates the formation of the out-of-plane texture. In addition, the Ta spacer layer has the effect of enhancing the pinning effect leading to a high coercivity. Based on first-order reversal curve analysis, the Ta spacer layer can enhance the dipole interaction and reduce the exchange interaction, which reveals that Nd-Fe-B grains are isolated by the Nd-rich phase. This work can help us to prepare thick Nd-Fe-B-based films with high perpendicular magnetic anisotropy and high coercivity for applications in micro-mechanical systems. |
| Keyword | Perpendicular magnetic anisotropy Ta spacer layers Interface Nd element aggregation Exchange interaction |
| Funding Organization | National Key R & D Program of China ; National Nature Science Foundation of China |
| DOI | 10.1016/j.surfin.2023.102697 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R & D Program of China[2021YFB3500303] ; National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[51971219] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000926875800001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175164 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhao, X. T.; Liu, W. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ye, Z. X.,Zhao, X. T.,Liu, W.,et al. Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer[J]. SURFACES AND INTERFACES,2023,37:10. |
| APA | Ye, Z. X..,Zhao, X. T..,Liu, W..,Liu, L..,Wu, J. X..,...&Zhanga, Z. D..(2023).Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer.SURFACES AND INTERFACES,37,10. |
| MLA | Ye, Z. X.,et al."Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer".SURFACES AND INTERFACES 37(2023):10. |
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