Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering, Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering, Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering, Chinese Academy of Sciences (CAS) - CISRI & NIMTE Joint Innovation Center for Rare Earth Permanent Magnets, Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering, Shanghai Jiao Tong University (SJTU) - School of Materials Science and Engineering and The University of Osaka