Structural and MagneticProperties of (Ni1-xMgx) Fe2O4Ferrites

Abstract

We have studied the structural and magnetic properties of (Ni_1-xMg_x)Fe₂O₄ ferrite. X-ray diffraction and magnetization measurements were performed for all samples. X-ray results showed that a single phase ferrite was obtained for all samples. The lattice parameter,a, was estimated from the X-ray results and we found that the lattice parameter increases slightly at high Mg²⁺ contents (x > 0.4). Magnetic hysteresis measured for all samples showed that the coercivity (H_c) shows an appreciable change at low (x= 0.2) and
high (x=1.0) Mg²⁺ content. It was also found that the saturation magnetization (M_s) and the
remanence (M_r) decreases with increasing Mg.

Keywords: Nickel ferrite; Lattice parameters; Magnetic hysteresis; Cationic distribution.