1. Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
2. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Princeton Center for Theoretical Science, Princeton University, Princeton, New Jersey 08544, USA
5. Faculty of Physics, Ludwig-Maximilians-University Munich, 80799 Munich, Germany
6. Munich Center for Quantum Science and Technology (MCQST), Ludwig-Maximilians-University Munich, 80799 Munich, Germany
7. National High Magnetic Field Laboratory, Tallahassee, Florida 32310, USA
8. Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
9. Laboratoire de Physique de l'cole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France
10. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
11. Donostia International Physics Center, P. Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
12. IKERBASQUE, Basque Foundation for Science, Bilbao, Spain