[1] Hangzhou Dianzi Univ, Inst Adv Magnet Mat, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China
[2] Zhejiang Innuovo Magnet Co Ltd, Jinhua 322118, Zhejiang, Peoples R China
[3] Ningbo Permanent Magnets Co Ltd, Ningbo 315032, Peoples R China
[4] Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China