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Author(s) |
Kothawale, M. M.; Tangsali, R. B.; Naik, G. K.;, Budkuley J.S., Meena S.S., Bhatt P. (SSPD)
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Source |
AIP Conference Proceedings, 2013. Vol. 1512 (1): pp. 1160-1161 |
ABSTRACT
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Ni0.60Zn0.40Fe2O4 ferrite was prepared via microwave assisted combustion method and sintered at three different temperatures (1100, 1200 &1300oC). The lattice constant and bulk density increases whereas the porosity decreases (from 12% to 8% at 1100 to 1300oC) with increasing sintering temperature. High saturation magnetization value (72.9 emu/g) is observed for the sample sintered at 1200oC. Room temperature Mössbauer spectroscopy provided information on the magnetic phase and amount of Fe at A and B site in the lattice. Isomer shift (δ) values show that iron is in high spin Fe+3 states. Quadrupole splitting (Δ) values show the cubic symmetry at A-sites, possibility of local distortion at octahedral site and increase in hyperfine field with sintering temperature. |
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