1. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
2. School of Physical Sciences, University of Chinese Academy of Sciences , Beijing 100190, China
3. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei 230026, China
4. CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, Department of Physics, University of Science and Technology of China , Hefei 230026, China
5. Laboratory for Quantum Emergence, Department of Physics, Southern University of Science and Technology , Shenzhen 518055, China
6. Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7), Department of Physics, Princeton University , Princeton, NJ 08544, USA
7. Materials Department and California Nanosystems Institute, University of California Santa Barbara , Santa Barbara, CA 93106, USA
8. Kavli Institute of Theoretical Sciences, University of Chinese Academy of Sciences , Beijing 100190, China