Abstract:
The studies describe the influence of Cobalt inclusion on the magnetic properties of Ni-Zn ferrites. The composition with desired stoichiometry were prepared by combustion method and simultaneously sintered at 1000 degrees C for 10 hrs. The structural lattice parameter increases from 8.3849 to 8.4028 Angstrom by virtue of higher ionic radii of Co ions than Ni ions. The permeability values decrease with the increase in Co substitution and can be assigned to microstructure and increased magnetocrystalline anisotropy. Also, the saturation magnetization increases due to higher magnetic moment of Co ions than Ni ions with enhancement in hysteresis loop. The Curie temperature decreases with increase in Co content and can be attributed to weakening of A-B interaction also evident from increased lattice parameter.
