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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.; 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.
2017-06-14
发表期刊NANOSCALE
ISSN2040-3364
卷号9期号:22页码:7385-7390
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.; 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.
部门归属[dai, z. m. ; liu, w. ; zhao, x. t. ; wang, t. t. ; li, s. k. ; zhao, x. g. ; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [yu, yongsheng] harbin inst technol, sch chem & chem engn, miit key lab crit mat technol new energy convers, harbin 150001, heilongjiang, peoples r china
学科领域Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
资助者National Nature Science Foundation of China [51590883, 51471167, 51571072]; Chinese Academy of Sciences [KJZD-EW-M05-3]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78087
专题中国科学院金属研究所
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.
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..,...&Yu, YS .(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.
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