1. Advanced Engineering Research Division, Toyota Motor Technical Research And Service (Shanghai) Co., Ltd, China
2. Yantai Dongxing Magnetic Materials Inc, 888 Yongda Street, Yantai 265500, China
3. School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
4. University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China