1. Institutes of Physical Science and Information TechnologyAnhui University Hefei 230601 China
2. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme ConditionsHigh Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230031 China
3. Science Island Branch of Graduate SchoolUniversity of Science and Technology of China Hefei 230026 China
4. Collaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210093 China