1. School of Electronic Science and Engineering; Nanjing University; Nanjing 210046 China
2. Institute of Electrical Engineering; Chinese Academy of Sciences; Beijing 100190 China
3. National Institute for Materials Science; Tsukuba 305-0044 Japan
4. Institute of Microstructures and Properties of Advanced Materials; Beijing University of Technology; Beijing 100124 China
5. School of Chemistry; Sun Yat-sen University; Guangzhou 510275 China
6. Graduate School of Chemical Sciences and Engineering; Hokkaido University; Sapporo 060-0810 Japan
7. Synergetic Innovation Center of Quantum Information and Quantum Physics; University of Science and Technology of China; Hefei Anhui 230026 China