1. New Materials Institute, Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
2. CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
3. Locomotive and Car Research Institute, Chinese Academy of Railway Sciences Co., Ltd., Beijing 100081, China
4. Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong, China
5. Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China