1. Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
2. Beijing Key Laboratory of Magnetoelectric Materials and Devices, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
3. Institute of Spin-X Science and Technology, South China University of Technology, Guangzhou 511442, China