Effect on the B-H loop and complex permeability with nickel substitution on Li-Zn ferrite synthesized by the citrate precursor method

Abstract

o C after a pre-firing at a temperature of 650 o C. Various characterizations using T C set up, BH loop tracer were carried out on the sintered samples. The X-ray diffraction pattern confirmed the formation of spinel phase. Magnetic properties such as Curie temperature using T C set up, BH loop parameter and complex permeability using BH loop tracer were studied. Experimental results show that the Curie temperature, saturation magnetization and initial permeability decreases with the increase in the Ni 2+ concentration. The complex permeability measured as a function of frequency in the range of 20Hz-2MHz show dispersion. Possible mechanism contributing to the above process is being discussed.