Structural and magnetic properties of Mn-doped ZnO powders

► Observed FM in DMS systems critically depends on the preparation conditions. ► Oxygen vacancies are believed to be responsible for the observed RT FM in the samples. ► Estimated magnetic moment per magnetic cation is found in the range of 4.2-6 μB/Mn. ► The finding of this work is consistent with the bound magnetic polaron (BMP) model.