1. State Key Laboratory of Electronic Thin Film and Integrated Devices School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu Sichuan 610054 China
2. Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou 215123 China
3. Research Institute of Superconductor Electronics Nanjing University Nanjing 210093 China