Micromagnetism simulation on effects of soft phase size on Nd2Fe14B/α–Fe nanocomposite magnet with soft phase imbedded in hard phase Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 51331003), the International S & T Cooperation Program of China (Grant No. 2015DFG52020), the General Program of Science and Technology Development Project of Beijing Municipal Education Commission, China (Grant No. KM201710005006), and the State Key Laboratory of Advanced Metals and Materials, China (Grant No. 2015-ZD02). |
(color online) Magnetic moment distributions of Nd2Fe14B/α–Fe nanocomposite magnet with 4S = 48 nm, when (a) H = −1.4 kOe where the nucleation occurs, (b) H = −4.9 kOe, (c) H = −5.6 kOe after the reversal of hard phase perpendicular to the easy axis and (d) H = −7 kOe before the reversal of hard phase parallel to the easy axis, the observation surfaces of panels (a) and (b) are xy plane and z = 32 nm while the observation surfaces of panels (c) and (d) are xz plane and y = 32 nm. |