1. State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China
2. School of Materials Science and Physics China University of Mining and Technology Xuzhou 221116 China
3. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
4. National Institute of Metrology Beijing 100029 China
5. Key Laboratory of Electrical Quantum Standards for State Market Regulation Beijing 100029 China
6. School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
7. International Department the Affiliated High School of South China Normal University Guangzhou 510630 China
8. State Key Laboratory of ASIC and System School of Microelectronics Fudan University Shanghai 200433 China