1. State Key Laboratory of ASIC and System, School of Microelectronics, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 200433, China
2. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
3. Shenzhen 6 Carbon Technology, Shenzhen 518106, China
4. School of Electronic Information, Soochow University, Suzhou 215006, China
5. In Situ Devices Center, Shanghai Key Laboratory of Multidimensional Information Processing, East China Normal University, Shanghai 200241, China