Manipulating coupling state and magnetism of Mn-doped ZnO nanocrystals by changing the coordination environment of Mn via hydrogen annealing
Cheng Yan1, Li Wen-Xian2, 3, Hao Wei-Chang1, †, , Xu Huai-Zhe1, ‡, , Xu Zhong-Fei1, Zheng Li-Rong4, Zhang Jing4, Dou Shi-Xue3, Wang Tian-Min1
       

TEM images of ZnMnO (a) and ZnMnO-H2 (b).