Affiliation: | 1.Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fujian Normal University, Fuzhou, 350117, China ;2.College of Physics and Energy, Fujian Normal University, Fuzhou, 350117, China ;3.Key Laboratory of Magnetic Levitation Technologies and Maglev Trains, School of Electric Engineering, Southwest Jiaotong University, Chengdu, 610031, China ;4.Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu, 610031, China ; |