Yang Jinbo1, 2, 3, †, Yang Wenyun1, 2, 3, Shao Zhuyin1, 2, 3, Liang Dong1, 2, 3, Zhao Hui1, 2, 3, Xia Yuanhua4, Yang Yunbo1
(color online) (a) The tetragonal D022 structure. (b) The tetragonal L10 structure. (c) The tetragonal D022 structure, including two unit cells with L10 structure.[75]