1. Anhui Province Key Laboratory for Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, 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. Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Chinese Academy of Sciences, Hefei 230031, China
4. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China