International Journal of Nano Science Trends and Technology

Authors: M. A. Hossain, M. N. I. Khan, S. S. Sikder

Abstract: The compositions Ni0.60Zn0.40-xYxFe2O4 [x = 0-.05, 0.10 and 0.15] were prepared by using solid state reaction technique. The XRD analysis of Ni-Zn sample shows formulation of cubic spinel structure with no extra peak. With substitution of rare earth Yttrium ions (Y3 ) in to the Ni-Zn ferrites show additional peaks other than spinel structure and corresponding to a second orthoferrite phase. Lattice parameters of the composition Ni0.60Zn0.40-xYxFe2O4 [x = 0-.05, 0.10 and 0.15] series slightly decrease with increasing x-content. The bulk density is found to decrease minorly with increasing Y 3 contents. The increase in density and grain growth of the samples may be attributed to the liquid phase at constant sintering temperature. Saturation magnetization, Ms was observed and was found to increase with increasing, Y3+ contents. Initial permeability decreases with the increasing of Y 3 ions. Quality factor signifies the merit of the material from the application point of view. The compositions The compositions Ni0.60Zn0.40-xYxFe2O4 [x = 0-.05, 0.10 and 0.15] were prepared by using solid state reaction technique. The XRD analysis of Ni-Zn sample shows formulation of cubic spinel structure with no extra peak. With substitution of rare earth Yttrium ions (Y3 ) in to the Ni-Zn ferrites show additional peaks other than spinel structure and corresponding to a second orthoferrite phase. Lattice parameters of the composition Ni0.60Zn0.40-xYxFe2O4 [x = 0-.05, 0.10 and 0.15] series slightly decrease with increasing x-content. The bulk density is found to decrease minorly with increasing Y 3 contents. The increase in density and grain growth of the samples may be attributed to the liquid phase at constant sintering temperature. Saturation magnetization, Ms was observed and was found to increase with increasing, Y3+ contents. Initial permeability decreases with the increasing of Y 3 ions. Quality factor signifies the merit of the material from the application point of view. From these three series of samples are seen that the real part of initial permeability almost constant up to 4MHz. The AC resistivity decreases with increasing temperature. The dielectric constant is found to decrease continuously with increasing frequency and remains almost constant at higher frequency range. The variation of electrical resistivity and dielectric properties is explained of Fe2+/Fe3+ ionic.