Ferromagnetic ordering in Mn-doped ZnO nanoparticles
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Updated: Apr 20, 2026

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
Published on: February 5, 2022
Xi Luo1, Wai-Tung Lee2, Guozhong Xing1
1School of Materials Science and Engineering, University of New South Wales, Kensington, 2 High Street, Sydney, NSW 2052, Australia.
Abstract:
Zn1 - x Mn x O nanoparticles have been synthesized by hydrothermal technique. The doping concentration of Mn can reach up to 9 at% without precipitation or secondary phase, confirmed by electron spin resonance (ESR) and synchrotron X-ray diffraction (XRD). Room-temperature ferromagnetism is observed in the as-prepared nanoparticles. However, the room-temperature ferromagnetism disappears after post-annealing in either argon or air atmosphere, indicating the importance of post-treatment for nanostructured magnetic semiconductors.
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