1. Center for Correlated Matter, Zhejiang University, Hangzhou, People’s Republic of China
2. Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
3. Department of Physics, Kyoto University, Kyoto, Japan
4. Department of Materials Science, Shimane University, Matsue, Japan
5. Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
6. Walter Meissner Institute for Low Temperature Research, Bavarian Academy of Sciences, Garching, Germany
7. Department of Physics and Astronomy, Texas A&M University, College Station, TX, USA
8. Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
9. Institute of Physics, Chinese Academy of Sciences, Beijing, People’s Republic of China
10. School of Physics, H H Wills Physics Laboratory, University of Bristol, Bristol, UK
11. Physics Institute, University of Frankfurt, Frankfurt, Germany
12. Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou, People’s Republic of China
13. Department of Physics and Astronomy and Quantum Materials Institute, University of British Columbia, Vancouver, Canada
14. Department of Physics and Astronomy, Rice University, Houston, TX, USA
15. Department of Physics, Renmin University of China, Beijing, People’s Republic of China