Abstract: The Barium w-type ferrite powder with the composition formula (BaNi2-xZnxFe16O27, with
x=0.0, 0.4, 0.8, 1.2, 1.6, and 2) were synthesized by using the ceramic method. The X-ray analysis
confirms the formation of a single-phase w-type hexagonal structure. The lattice constant increases
slightly with increasing the zinc concentration. UV-VIS analysis of the sample was carried out. The
band gaps can be obtained at different concentrations from the zinc and have band gaps in the
semiconducting region. The optical constants of absorption coefficient, extinction coefficient, refractive
index, and reflection showed systematic variation with Zn concentration. The optical and electrical
conductivity ware be observed increases with photon energy, and the conductivity peak of the samples
increases with a decrease in Zn content. The electric susceptibility decreases with an increase in the Zn
concentration
د. صادق حسن يحيى خريم | Dr. Sadiq Hassan Yahya Khoreem | 3045