College of Materials Science and Engineering;
ChangchunUniversity of Technology;
Changchun 130012;
Jilin;
China;
Zhejiang Province Key Laboratory of Magnetic Materials andApplication Technology;
CAS Key Laboratory of MagneticMaterials and Devices;
Ningbo Institute of MaterialsTechnology and Engineering;
Chinese Academy of Sciences;
Ningbo 315201;
Zhejiang;
China;