Gallium Substituted Cobalt Ferrite Nanoparticles: Synthesis, Structural Characterization, Electrical and Magnetic Properties, by sol-gel auto combustion technique.

Spinel ferrites are magnetic materials that have exceptional structural features. In this study we investigated the influence of Gallium Doping on the structural, magnetic and electrical properties of Ga x CoFe 2-x O 4 (x = 0.000, 0.050, and 0.100). As prepared material is sintered at 600 °C for 4 h in muffle furnace with a heating rate of 100 °C/h. As prepared ferrite powder were characterized by X-Ray Diffraction (XRD), FTIR spectroscopy, and Scanning Electron Microscopy – Energy Dispersive X-ray spectroscopy (SEM – EDX). The results reveals that the formation of pure cobalt ferrite phase for low gallium content. The study of DC electrical resistivity of the prepared sample Ga x CoFe 2-x O 4 were carried out in the temperature range of 300-800K using standard two probe method. For Magnetic analysis as prepared samples were tested with Vibrating Sample Magnetometer (VSM). Measurements were considered for all samples.