The work was supported by the National Key Research and Development Program of China (Nos. 2018YFA0703700, 2017YFA0304600, and 2017YFA0205700), the National Natural Science Foundation of China (Nos. 51861135201, 21473001, 11774354, 11674329, and 51727806), Beijing Natural Science Foundation (No. 2192021), the Project funded by China Postdoctoral Science Foundation (No. 2018M640023), Chinese Academy of Science (No. YZJJ201705), Open Research Fund Program of the State Key Laboratory of Low-dimensional Quantum Physics (No. KF201907), and Start-up Funding of Peking University.
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