Structural, magnetic and transport properties of samarium (Sm) doped Cu-Zn ferrites

Abstract

The present work is focused on investigating the effect of rare earth ion on structural, magnetic and transport properties of (Cu 0.5 Zn 0.5 Fe 2-x)Sm x O 4 [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.

Study of the Structural, Magnetic and Transport properties of La³⁺ Doped Cu-Zn Ferrite

“…The bulk density exhibits the decreasing phenomenon initially and then remains constant from a point with the increase of La substitution. The decreasing phenomenon of bulk density happens on account of the increasing intergranular porosity which is the result of discontinuous grain growth [17]. Fig.…”