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Mossbauer spectroscopy and x-ray diffraction study of (Cd, Zn) substituted mixed ferrites.

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Figure 1.1: Schematic diagram of one eighth of the unit cell of the spinel structure [4].
Figure 1.2: Spin arrangements on: (a) a normal spinel; (b) Fe ions in magnetite having an inverse spinel structure [4].
Figure 1.3: Schematic representation of spin: (a) ferromagnetism; (b) anti- anti-ferromagnetism; (c) ferrimagnetism [4].
Figure 2.2: (a) Isomer shift, (b) Magnetic splitting and (c) Splitting due to combined magnetic and quadrupole splitting of the 3/2 - - 7 1/2 transition in 57Fe.
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CONCLUSIONS In this study, the concentration and fraction of 11 heavy metals Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, V, and Zn were investigated by applying BCR sequential extraction