1. State Key Laboratory for Mesoscopic Physics and Collaborative Innovation Center of Quantum Matter, Department of Physics, Peking University, Beijing 100871, China
2. Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
3. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
4. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
5. Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu 30010, Taiwan