1. School of Electrical Engineering & Intelligentization, Dongguan University of Technology, Dongguan 523830, China
2. Department of Physics, Renmin University of China, Beijing 100872, China
3. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
4. Dongguan Academy of Advanced Ceramics and Composite Materials, Dongguan 523722, China
5. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China