Mn-based permanent magnets
Yang Jinbo1, 2, 3, †, Yang Wenyun1, 2, 3, Shao Zhuyin1, 2, 3, Liang Dong1, 2, 3, Zhao Hui1, 2, 3, Xia Yuanhua4, Yang Yunbo1
       

(a) SEM image of as-quenched MnBi ribbons melt-spun at 65 m/s, (b) TEM image of annealed ribbons melt-spun at 65 m/s, (c) and (d) the milled MnBi powders.[38]