1. School of Aerospace EngineeringBeijing Institute of Technology Beijing 100081 China
2. Electron Microscopy Laboratory and International Center for Quantum MaterialsSchool of PhysicsPeking University Beijing 100871 China
3. Department of Physics and Beijing Key Laboratory of Opto‐Electronic Functional Materials & Micro‐Nano DevicesRenmin University of China Beijing 100871 China
4. Collaborative Innovation Centre of Quantum Matter Beijing 100871 China