1. College of Materials Science and Engineering, Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
2. CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences; Ningbo 315201 People's Republic of China
3. Department of Physics, Taiyuan University of Technology; Shanxi 030024 People's Republic of China
4. School of Science, Jiangnan University; Wuxi 214122 People's Republic of China
5. National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Nanjing University; Nanjing 210093 People's Republic of China
6. Department of Physics, Taiyuan University of Science and Technology; Taiyuan 030024 People's Republic of China