1. Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. Center for Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing 100875, People’s Republic of China
3. International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, People’s Republic of China
4. Hefei National Laboratory, Hefei 230088, People’s Republic of China
5. Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States