Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/alpha-Fe multilayers with out-of-(plane easy axes*)
文献类型：期刊论文
| 作者 | Zhao, Qian; He, Xin-Xin; Morvan, Francois-Jacques; Zhao, Guo-Ping; Li, Zhu-Bai |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2020 |
| 卷号 | 29期号:3 |
| 关键词 | REORIENTATION TRANSITION NANOCOMPOSITE FILMS ENERGY PRODUCT COERCIVITY NUCLEATION |
| DOI | 10.1088/1674-1056/ab69e9 |
| 英文摘要 | Hysteresis loops, energy products and magnetic moment distributions of perpendicularly oriented Nd2Fe14B/alpha-Fe exchange-spring multilayers are studied systematically based on both three-dimensional (3D) and one-dimensional (1D) micromagnetic methods, focused on the influence of the interface anisotropy. The calculated results are carefully compared with each other. The interface anisotropy effect is very palpable on the nucleation, pinning and coercive fields when the soft layer is very thin. However, as the soft layer thickness increases, the pinning and coercive fields are almost unchanged with the increment of interface anisotropy though the nucleation field still monotonically rises. Negative interface anisotropy decreases the maximum energy products and increases slightly the angles between the magnetization and applied field. The magnetic moment distributions in the thickness direction at various applied fields demonstrate a progress of three-step magnetic reversal, i.e., nucleation, evolution and irreversible motion of the domain wall. The above results calculated by two models are in good agreement with each other. Moreover, the in-plane magnetic moment orientations based on two models are different. The 3D calculation shows a progress of generation and disappearance of vortex state, however, the magnetization orientations within the film plane calculated by the 1D model are coherent. Simulation results suggest that negative interface anisotropy is necessarily avoided experimentally. |
| 学科主题 | Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20034]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Zhao, GP (corresponding author), Inner Mongolia Univ Sci & Technol, Coll Sci, Inner Mongolia Key Lab Utilizat Bayan Obo Multime, Elected State Key Lab,Dept Appl Phys, Baotou 014010, Peoples R China. 2.Zhao, Q 3.Zhao, GP (corresponding author), Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610066, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhao, Qian,He, Xin-Xin,Morvan, Francois-Jacques,et al. Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/alpha-Fe multilayers with out-of-(plane easy axes*)[J]. CHINESE PHYSICS B,2020,29(3). |
| APA | Zhao, Qian,He, Xin-Xin,Morvan, Francois-Jacques,Zhao, Guo-Ping,&Li, Zhu-Bai.(2020).Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/alpha-Fe multilayers with out-of-(plane easy axes*).CHINESE PHYSICS B,29(3). |
| MLA | Zhao, Qian,et al."Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/alpha-Fe multilayers with out-of-(plane easy axes*)".CHINESE PHYSICS B 29.3(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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