1. State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of Physics Peking University Beijing 100871 China
2. School of Information Science and Technology Fudan University Shanghai 200438 China
3. Electron Microscopy Laboratory School of Physics Peking University Beijing 100871 China
4. GuSu Laboratory of Materials Suzhou Jiangsu 215123 China
5. Songshan Lake Materials Laboratory Dongguan 523808 China
6. Dongguan Institute of Opto-electronics Peking University Dongguan Guangdong 523808 China
7. Collaborative Innovation Center of Quantum Matter School of Physics Peking University Beijing 100871 China