Magnetization reversal and magnetic interactions in anisotropic Nd-Dy-Fe-Co-B/MgO/alpha-Fe disks and multilayers

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	Magnetization reversal and magnetic interactions in anisotropic Nd-Dy-Fe-Co-B/MgO/alpha-Fe disks and multilayers
	Dai, Z. M. ; Liu, W. ; Zhao, X. T. ; Wang, T. T. ; Li, S. K. ; Yu, Yongsheng ; Zhao, X. G. ; Zhang, Z. D.
刊名	NANOSCALE
	2017-06-14
卷号	9 期号:22 页码:7385-7390
ISSN号	2040-3364
通讯作者	Liu, W (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. ; Yu, YS (reprint author), Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China.
中文摘要	We report on a field induced domain evolutionary procedure in the anisotropic Nd-Dy-Fe-Co-B/MgO/Fe multilayers by using firstorder- reversal-curves and magnetic force microscopy. Different reversal behaviors and domain sizes are found in well coupled and decoupled multilayers by changing the thickness of the spacer layer. The competition between dipolar magnetostatic energy and Zeeman energy is evaluated by in-field observation throughout nucleation and annihilation processes. In addition, lithographypatterned arrays of soft Fe disks onto a continuous Nd-Dy-FeCo- B hard-magnetic layer are designed. By decreasing the applied field, it is found that magnetization orientations of the Fe disk and Nd-Dy-Fe-Co-B layer are aligned parallel. In the decoupled disk, although the out-of-plane magnetization orientations are observed, the orientation of the domains in the Fe disk is random. Furthermore, it is found that a stronger anisotropy of the Nd-DyFe- Co-B layer decreases the interaction length. Our results provide a new understanding of anisotropic nanocomposite magnets with long-ranged magnetic interactions.
学科主题	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
收录类别	SCI
资助信息	National Nature Science Foundation of China [51590883, 51471167, 51571072]; Chinese Academy of Sciences [KJZD-EW-M05-3]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78087]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Dai, Z. M.,Liu, W.,Zhao, X. T.,et al. Magnetization reversal and magnetic interactions in anisotropic Nd-Dy-Fe-Co-B/MgO/alpha-Fe disks and multilayers[J]. NANOSCALE,2017,9(22):7385-7390.
APA	Dai, Z. M..,Liu, W..,Zhao, X. T..,Wang, T. T..,Li, S. K..,...&Zhang, Z. D..(2017).Magnetization reversal and magnetic interactions in anisotropic Nd-Dy-Fe-Co-B/MgO/alpha-Fe disks and multilayers.NANOSCALE,9(22),7385-7390.
MLA	Dai, Z. M.,et al."Magnetization reversal and magnetic interactions in anisotropic Nd-Dy-Fe-Co-B/MgO/alpha-Fe disks and multilayers".NANOSCALE 9.22(2017):7385-7390.