Dielectric and Magnetic properties of – irradiated Mg(1–x) Zn(x) Ferrite

A S Jagadisha; E Nagaraja; H S Jayanna; N B Desai.

Volume : V, Issue : XI, November - 2016

Dielectric and Magnetic properties of – irradiated Mg(1–x) Zn(x) Ferrite

A S Jagadisha, E Nagaraja, H S Jayanna, N B Desai.

Abstract :

Magnesium zinc ferrite powder with general formula Conclusion Mg(1–x) Zn(x) Fe2 O4 (X=0.2,0.4,0.6,& 0.8) was synthesized by usual ceramic method. Phase purity of the samples were confirmed by X–ray diffraction. The prepared samples were irradiated to high energy gamma radiation of 60Co with dose rate 6.972 k Gy per hour (dose: 300 k Gy and 500 k Gy). The radiation induces modification on electrical behaviors, frequency dependent of ac conductivity, dielectric constant, loss tangent were studied. The irradiated samples showed an increase in electrical conductivity. The dielectric constant increases with radiation dose. The Hysteresis curves were measured using viating sample magneto meter (VSM) for both irradiated and un irradiated samples, the results showed an increase in saturation magnetization with radiation dose. This may be due to ion induced disorder, cat ion distribution