1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
2. Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
3. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
4. Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China