Effect Of Mn Substitution On Structural And Magnetic Properties Of Cobalt Ferrite
Swati Tapdiya, Ashwani K. Shrivastava, Sarika Singh
Volume 2, Issue 9, Page 547-551, Year 2017 | DOI: 10.5185/amp.2017/695
Keywords: Cobalt ferrite, nanoparticles, x-ray diffraction, SEM, saturation magnetization.
Abstract: Manganese substituted Cobalt Ferrite Co1-xMnxFe2O4() nanoparticles were prepared using low temperature chemical co-precipitation method. All the samples were annealed at 900°C for 3 hours. The crystal lattice symmetry and phase purity were performed by X-ray diffraction (XRD). The varying dopent concentration affects the crystalline size, surface morphology and magnetic properties of the cobalt ferrite. The particle sizes are found to be in the range of 29-37 nm. SEM with EDAX examines the morphological and compositional analysis of the nanoparticles. EDAX confirms the presence of Co, Mn, Fe and O. Fourier transform infrared spectroscopy (FTIR) study confirms the formation of spinel ferrite. The saturation magnetization, magnetic remanence and coercive field of CoMn nanoparticles are obtained at room temperature. Saturation magnetization initially increases and then decreases for higher value of dopent, which shows applicability of these materials for recording media and magnetic data storage. Copyright © 2017 VBRI Press.