INFLUENCES OF CATION DISTRIBUTION OF ZINC SUBSTITUTED ON INVERSE SPINEL NICKEL FERRITE NANOPARTICLE FOR SUPERPARAMAGNETIC APPROACH

Mukhlis M. Ismail and Nasma A. Jaber
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Mukhlis M. Ismail: Department of Applied Sciences, University of Technology, Baghdad, Iraq
Nasma A. Jaber: Department of Applied Sciences, University of Technology, Baghdad, Iraq

Surface Review and Letters (SRL), 2018, vol. 25, issue 03, 1-6

Abstract: Sol–gel method has been employed to prepare Ni–Zn ferrite with chemical formula Ni1−xZnxFe2O4 where x= 0, 0.1, 0.2, 0.3, 0.4 and 0.5. The structural Ni–Zn ferrite was studied via the X-ray diffractometer (XRD) pattern. X-ray analysis showed that there is a small shift in peaks towards shorter angles which increases with the concentration of zinc. Experimental values of lattice constant was varied from 8.34 of Ni ferrite to 8.397nm for Ni–Zn ferrite. The crystallite size of Ni ferrite was 83nm which is decreasing with substituted Zn to it and became 43nm at 4x=0.5. Therefore, the superparamagnetic behavior appears with substitution of Zn to Ni ferrite. The saturation magnetization, remiensis, coersivity, magnetic moment and anisotropy constant were calculated according to hysteresis loop using the result of vibrating sample magnetometer (VSM). The effect of cation distribution appeared clearly through the saturation magnetization value which was 46.8emu/gm for nickel ferrite and increased to an optimum value (59.64emu/gm) at x=0.3.

Keywords: Ni–Zn Ferrite; saturation magnetization; superparamagnetic (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X18500762

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