1. National Laboratory of Solid State Microstructures and Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu 210023, China
2. Kuang Yaming Honors School, Nanjing University, Nanjing, Jiangsu 210023, China
3. National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
4. Key Laboratory of Quantum Materials and Devices of Ministry of Education Southeast University, Nanjing, Jiangsu 211189, China