Abstract
A spinel nanocrystalline Ni0.3Cu0.3Zn0.4 Fe2O4 was prepared using co-precipitation method maintaining pH -7,10 and 12. The pH influenced structural, spectroscopic and magnetic parameters were recorded by X-ray diffraction (XRD), FTIR and VSM. The crystallite size (31.12 nm to 45.32nm), lattice dimension (8.4175 Å to 8.4368 Å), strain (2.525x10-3 to 3.669x10-3), dislocation density (1.024 x10151/m2 to 4.867 x10151/m2) shows considerable structural enhancement due to pH variation. The Fe-O group analysis by FTIR within 400-600 cm-1 corresponds to tetrahedral (587 cm-1 to 591cm-1) and octahedral (442 cm-1 to 444 cm-1) vibration confirms the formation of spinel nanoferrites. The smooth hysteresis M-H loop with coercivity (12.5826 Oe to 11.2212 Oe), magnetic saturation (62.8431 emu/g to 66.2495 emu/g) and retentivity (0.6375 emu/g to 0.6988 emu/g) describes multi domain nature of prepared material. The obtained structural and magnetic parameter clearly indicates energy storage and high frequency application.
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