Abstract
The present work is focused on investigating the effect of rare earth ion on structural, magnetic and transport properties of (Cu0.5Zn0.5Fe2-x)SmxO4[x = 0.00, 0.05 and 0.10] ferrites which were prepared by solid state reaction technique at 1100°C for 3 h. The X-ray diffraction analysis revealed that rare earth free sample shows formulation of single phase cubic spinel structure with no extra peak whereas Sm substituted Cu-Zn ferrite samples show additional peaks that correspond to a secondary orthoferrite phase. Lattice parameter, bulk density, X-ray density and porosity of the studied samples are increased with Sm substituted ions. Lattice parameter of both series are slightly decrease with increase Sm content. The initial permeability decreases with increasing Sm ions in ferrite. Quality factor signifies the merit of the material from the application point of view. The dielectric constant was found to decrease continuously with increasing frequency and remain almost constant at higher frequency range. The dielectric behavior of the experimental ferrite samples can be explained on the basis of the mechanism of the dielectric polarization and conduction process. The saturation magnetization decreases with increasing rare earth Sm contents. Key words: Solid state reaction technique, sintering temperature, quality factor, dielectric polarization.
Highlights
Rare earth oxides are recently becoming the promising and potential additives for the improvement of the properties of ferrites
Present study demonstrates that the addition of small amount of rare earth ions to Cu-Zn ferrite samples produces a change in their structural, magnetic and electrical properties depending upon the type and the amount of rare earth elements used
X-ray diffraction (XRD) studies of the samples were performed by using Philips PERT PRO X-ray diffraction using Cu-Kα radiation in the range of 2θ = 20° to 70° in steps of 0.02°
Summary
Rare earth oxides are recently becoming the promising and potential additives for the improvement of the properties of ferrites. The properties can be changed by substitutions with various kinds of divalent cations or relatively small amount of rare earth ions. Many researchers reported on the influence of different additions and substitutions on structural, electrical and magnetic properties of ferrites (Costa et al, 2003; Mohamed et al, 2003; Calderon-Qritiz et al, 2007; Hossain et al, 2015). Present study demonstrates that the addition of small amount of rare earth ions to Cu-Zn ferrite samples produces a change in their structural, magnetic and electrical properties depending upon the type and the amount of rare earth elements used
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