1. State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, People's Republic of China
2. Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
3. School of Science and Ministry of Industry and Information Technology, Key Laboratory of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology, Shenzhen 518055, China
4. Collaborative Innovation Center of Quantum Matter, Beijing 100871, People's Republic of China