1. School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
2. Wuhan Institute of Quantum Technology, Wuhan 430206, China
3. SANKEN, Osaka University, Ibaraki, Osaka 567-0047, Japan
4. Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
5. Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
6. Centre Européen de Sciences Quantiques, Institut de Science et d’Ingénierie Supramoléculaires, 8 Allée Gaspard Monge, BP 70028, 67083 Strasbourg Cedex, France