Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/α-Fe multilayers with out-of-plane easy axes*

Project supported by the National Key Research and Development Program of China (Grant No. 2016YFB0700900), the National Natural Science Foundation of China (Grant Nos. 51571126 and 51861030), the Inner Mongolia Autonomous Region Natural Science Foundation of China (Grant No. 2019MS01002), and the Inner Mongolia Innovative Research Team of China (Grant No. 3400102).

Zhao Qian1, †, He Xin-Xin1, Morvan Francois-Jacques2, Zhao Guo-Ping1, 3, ‡, Li Zhu-Bai1
       

Angular distribution θ(z) of the magnetization in the thickness direction calculated by the 1D model for a Nd2Fe14B (10 nm)/α-Fe (6 nm) multilayer under various interface anisotropies and applied fields. (a) Angular distribution at the nucleation and (b) angular distribution at H = −9.0 kOe and H = −14.6 kOe (the pinning).