Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer

doi:10.1016/j.surfin.2023.102697

IMR OpenIR

	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
通讯作者	Zhao, X. T.(xtzhao@imr.ac.cn) ; Liu, W.(wliu@imr.ac.cn)
	2023-04-01
发表期刊	SURFACES AND INTERFACES
ISSN	2468-0230
卷号	37 页码:10
摘要	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.
关键词	Perpendicular magnetic anisotropy Ta spacer layers Interface Nd element aggregation Exchange interaction
资助者	National Key R & D Program of China ; National Nature Science Foundation of China
DOI	10.1016/j.surfin.2023.102697
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2021YFB3500303] ; National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[51971219]
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000926875800001
出版者	ELSEVIER
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175164
专题	中国科学院金属研究所
通讯作者	Zhao, X. T.; Liu, W.
作者单位	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
推荐引用方式 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.