1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy
of Sciences, Shanghai 200050, China
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3. School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
4. ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, 201210 Shanghai, China
5. International Center for Quantum Materials, School of Physics, Peking University, 100871 Beijing, China
6. National Synchrotron Radiation Laboratory, University of Science and Technology of China, 42 South Hezuohua Road, Hefei, Anhui 230029, China