1. Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100190, China
2. University of Chinese Academy of Sciences, Haidian
District, Beijing 100049, China
3. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Haidian District, Beijing 100190, China
4. Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100190, China