Structural, Electrical and Magnetic Properties of Cobalt Copper Ferrite Nanoparticles Prepared by sol-gel method

摘要

In this paper nanoparticles of cobalt copper ferrite have been synthesized using sol-gel method were sintering at 1000°C for 2 hour. We report structural (Lattice Parameter, densities, Porosity, Volume), electrical and magnetic properties of Co_(1-x)Cu_xFe_2O_4 (where x=0.4 and 0.8) ferrite nanoparticles. Analysis of structural properties has been carried out by using XRD and reveals that all samples have single phase cubic spinel structure. The XRD pattern showed that the synthesized nanoparticles were the crystalline in nature with average crystalline size of 34.84 and 34.97 nm by using Scherrer's formula. SEM micrograph were analysed to investigate the grain structure. M-H curves were calculated using magnetic hysteresis loop measurements. The permittivity (ε), dielectric loss (tan δ_1) were determined at room temperature as a function of frequency by using LCR meter. The frequency increases both real and imaginary parts of permittivity decrease exponentially.