1. Research Laboratory for Quantum Materials
2. Singapore University of Technology and Design
3. Singapore 487372
4. Singapore
5. Department of Physics
6. Hebei Normal University
7. Shijiazhuang 050024
8. China
9. State Key Laboratory of Silicon Materials
10. School of Materials Science and Engineering
11. Zhejiang University
12. Hangzhou 310027
13. Cavendish Laboratory
14. University of Cambridge
15. Cambridge CB3 0HE
16. UK