Manipulating coupling state and magnetism of Mn-doped ZnO nanocrystals by changing the coordination environment of Mn via hydrogen annealing

Cheng Yan¹, Li Wen-Xian^{2, 3}, Hao Wei-Chang^{1, †,}, Xu Huai-Zhe^{1, ‡,}, Xu Zhong-Fei¹, Zheng Li-Rong⁴, Zhang Jing⁴, Dou Shi-Xue³, Wang Tian-Min¹

(a)–(c) TheM–Tand 1/χ–Tcurves of ZnMnO, ZnMnO-H1, and ZnMnO-H2 in a temperature ranging from 5 to 350 K in a magnetic field of 1000 Oe.