1. State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
2. School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
3. School of Electronic, Electrical and Communication Engineering University of Chinese Academy of Sciences Beijing 100049 China
4. Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China
5. Electron Microscopy Laboratory and International Center for Quantum Materials School of Physics Peking University Beijing 100871 China
6. Collaborative Innovation Centre of Quantum Matter Beijing 100871 China
7. Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology Hong Kong 999077 China