1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
2. Center for Quantum Materials Synthesis and Department of Physics & Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
3. Center for Quantum Matter, School of Physics, Zhejiang University, Hangzhou 310058, China
4. Department of Physics & Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
5. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
6. Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, New York 11973, United States