1. Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
2. Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
3. Tsung-Dao Lee Institute, Shanghai 200240, China