School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
The Institute of Information Engineering, Handan College, Handan 056005, China;
School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
School of Materials Science & Engineering, Hebei University of Technology, Tianjin 300130, China;
State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;