1. State Key Laboratory of Surface Physics, Institute for Nanoelectronic Devices and Quantum Computing, and Department of Physics, Fudan University 1 , Shanghai 200433, China
2. Shanghai Qi Zhi Institute 2 , Shanghai 200232, China
3. Materials Science and Engineering, Monash University 3 , Clayton VIC 3800, Australia
4. Zhangjiang Fudan International Innovation Center, Fudan University 4 , Shanghai 201210, China
5. Monash Centre for Electron Microscopy, Monash University 5 , Clayton VIC 3800, Australia
6. School of Physics and Astronomy, Monash University 6 , Clayton VIC 3800, Australia
7. Shanghai Research Center for Quantum Sciences 7 , Shanghai 201315, China
8. Collaborative Innovation Center of Advanced Microstructures 8 , Nanjing 210093, China