A study of nanocrystalline (Mn–Zn) ferrite in SiO2 matrix
2001
Abstract Nanocrystalline Mn 0.5 Zn 0.5 Fe 2 O 4 ferrite in SiO 2 matrix has been prepared by sol–gel method. X-ray diffraction (XRD) study indicates the presence of single-phase spinel ferrite in the sample. The size of the particles, estimated by a transmission electron microscope (TEM), was found to be less that 20 nm. The magnetization measurement of the sample shows no hysteresis loss. The Mossbauer spectra consist of a sextet due to ferromagnetic particles and a doublet due to superparamagnetic nano-sized ferrite.
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