Structural and magnetic investigations of sub-nano Mn-Mg ferrite prepared by wet method |
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Authors: | SF Mansour |
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Institution: | Physics Department, Faculty of Science, Zagazig University, Egypt |
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Abstract: | Manganese-magnesium ferrite nanoparticles Mn1−xMgxFe2O4; 0≤x≤0.25 were prepared by the co-precipitation route. The samples were characterized by X-ray diffraction (XRD), which confirms the single phase spinel structure. Crystallite size, calculated from the (3 1 1) peak using the Scherrer formula, was found to increase with increasing Mg2+ concentrations and was found to be within the range 3-6 nm. TEM was also used to characterize the microstructure of nanosized Mn1−xMgxFe2O4. Nominal composition of the samples was determined by Atomic Absorption analysis (AA). Hysteresis loops of manganese-magnesium ferrite were obtained at room temperature and revealed lower saturation magnetization values associated with nanocrystalline Mn1−xMgxFe2O4 particles. This behavior was attributed to structural distortion of surface spins compared to that of the bulk one. |
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Keywords: | Co-precipitation Mn-Mg nanoferrite nanoparticle Magnetization X-ray diffraction TEM Atomic Absorption |
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