1. Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fujian Normal University, Fuzhou, China
2. Shandong Institute of Space Electronic Technology, Yantai, China
3. Key Laboratory of Magnetic Levitation Technologies and Maglev Trains, School of Electric Engineering, and Superconductivity and New Energy Center, Southwest Jiaotong University, Chengdu, China
4. Institute of Advanced Study, Chengdu University, Chengdu, China