Institute of Applied Magnetics,Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000;
Institute of Applied Magnetics,Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000;
Institute of Applied Magnetics,Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000;
Institute of Applied Magnetics,Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000;
Institute of Applied Magnetics,Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000;