Magnetic Characterization Of Nano-Structured Cd-Substituted Cobalt Nanoferrite

Abstract

Ultrafine samples of the ferrite series Co_1-xCd_xFe₂O₄ (where, x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) synthesized by using Sol-Gel auto combustion method. X-ray analysis confirms the formation of a single-phase cubic spinel structure of all prepared samples. Using X-ray diffraction (XRD) analysis it is observed that, the lattice parameter increases with an increase in Cd²⁺ ions content x. It is due to the replacement of Co²⁺ by Cd²⁺ ions. The magnetic properties recorded at room temperature using a pulse-field magnetic hysteresis loop tracer. It is found that saturation magnetization (M_S), magneton number increases with an increase in Cd ions. The increase in Bohr magneton (n_B) number is associated with an increase in A-B interaction. Coercivity value decreases with cadmium content x, indicate that the prepared samples are in nanocrystalline nature.