Applied Physics Letters · 2007 · 79 citations · 13 references
Natural SciencesMaterials EngineeringMaterials ScienceMagnetic MaterialsNanomaterialsNanotechnologyCurie TemperatureFerromagnetic MaterialsFerromagnetismMagnetic NanomaterialsMetal Oxide NanomaterialsNanomaterial CharacterizationHigh-resolution Electron MicroscopyHigh-resolution Transmission Electron MicroscopyMagnetic Property CharacterizationNanomagnetismSaturation MagnetizationWet Chemical SynthesisZinc Oxide NanostructuresZinc Oxides
Ni-doped ZnO nanocrystals have been synthesized by a wet chemical reaction. The nanocrystals have been investigated carefully by high resolution transmission electron microscopy and all the particles are found to be the known wurtzite ZnO. X-ray photoelectron spectroscopy and Raman spectra results provide the evidence that Ni2+ is incorporated into the ZnO lattice at Zn2+ site. Magnetic property measurements reveal that the as-grown Zn1−xNixO nanocrystals exhibit room temperature ferromagnetic behaviors with saturation magnetization of 0.01emu∕g and Curie temperature above 340K for Ni concentration of ∼1% in atomic ratio.
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T. C. Damen, S. P. S. Porto, B. Tell · Physical Review · 1966 · 2K citations
Anisotropic Ferromagnetism in Substituted Zinc Oxide
M. Venkatesan, C. B. Fitzgerald, J. G. Lunney et al. · Physical Review Letters · 2004 · 1K citations · Full text