School of Physical Science and Technology;
ShanghaiTech University;
Shanghai;
201210;
China;
Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices;
Renmin University of China;
Beijing;
100872;
China;
ShanghaiTech Laboratory for Topological Physics;
ShanghaiTech University;
Shanghai;
201210;
China;
Shanghai Key Laboratory of High-resolution Electron Microscopy;
ShanghaiTech University;
Shanghai;
201210;
China;