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The effect of addition of Ti4+ under oxidizing atmosphere on the structural and magnetic properties of Ni0.3Zn0.7Fe2O4 is studied. The results of x-ray diffraction, magnetization, and Arrott plot measurements are reported. The data are analyzed on the basis of a three sublattice Yafet-Kittel model.

The variation of lattice parameter, saturation magnetization, and Curie temperature on the addition of Ti4+, Zr4+, and Sn4+ to some Ni-Zn ferrite compositions are reported and the results are explained on the basis of the movement of the substituting ions first to the tetrahedral and finally to the octahedral sites of the spinel lattice.

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