Structural, Electrical and Magnetic Properties Of Ni~(2+) Substituted Cobalt Nanoferrite using Sol-Gel Method

摘要

Ni doped cobalt ferrite of chemical formula Ni_(1-x)Co_xFe_2O_4 with x values = 1, 0.5, 0 were prepared by using Poly Vinyl Alcohol (PVA) sol-gel method. The prepared samples were heat treated at 450°C for an hour and grounded to form fine powder. XRD of the powder sample confirms the formation of spinel ferrite phase. SEM and EDAX spectrum reveals the surface and chemical composition of the sample. FTIR spectra of the samples show the stretching vibration of the tetrahedral (v1) and octahedral (v2) bands of Fe-O bonds appearing at 600cm~(-1) and 424cm~(-1) respectively. Room temperature magnetic and electrical studies were done using VSM and LCZ meter to analyze their property respectively.