State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;
State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;
State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;
Department of Bio-chemistry, Yantai University, Yantai 264005;
State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;