1. National Center for Electron Microscopy in BeijingSchool of Materials Science and EngineeringThe State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials (MOE)Tsinghua University Beijing 100084 China
2. State Key Laboratory of Low‐Dimensional Quantum PhysicsDepartment of PhysicsTsinghua University Beijing 100084 China
3. Collaborative Innovation Center of Quantum Matter Beijing 100084 China
4. School of Physics and EngineeringZhengzhou University Zhengzhou 450001 China
5. Thermo Fisher Scientific Achtseweg Noord 5 5651 GG Eindhoven The Netherlands