Abstract
Chemical precipitation of metal-ions from aqueous solution has been successfully used to produce Zn 1− x Mn x O nanocrystals, in the form of nano-powder. X-ray diffraction (XRD) measurements reveal that the as-prepared samples are single-phase materials and their lattice constant changes with the variation of Mn-concentration, which indicates the incorporation of Mn 2+ into the hosting ZnO. These findings are corroborated by the observation of the well defined six hyperfine lines of Mn 2+ ion in the electron paramagnetic resonance (EPR) spectra of the samples with a low Mn-concentration, and of a broad EPR line, which manifests the onset of Mn–Mn exchange interaction, in the samples with an elevated value of x.
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