1. State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, Nano-optoelectronics Frontier Center of Ministry of Education, School of Physics, Peking University, Beijing 100871, People's Republic of China
2. Peking University Yangtze Delta Institute of Optoelectronics, Nantong 226010, Jiangsu, People's Republic of China
3. Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China
4. Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People's Republic of China
5. Collaborative Innovation Center of Quantum Matter, Beijing 100871, People's Republic of China