An improved X-ray structural analysis for determining cation distribution in ZnFe2O4 and ZnFe2O4- Fe3O4 solid solutions

Shinoda, K and Reynales, C and Waseda, Y and Jacob, KT and Sugiyama, K (1995) An improved X-ray structural analysis for determining cation distribution in ZnFe2O4 and ZnFe2O4- Fe3O4 solid solutions. In: Journal of the Mining and Materials Processing Institute of Japan, 111 . pp. 801-806.

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Abstract

The distribution of zinc cation between crystallographically nonequivalent positions in ZnFe204 has been determined by anomalous X-ray scattering near the Zn K absorption edge. Measured intensity ratio with two energies close to the edge can be quantitatively explained only by assigning all zinc cations to the tetrahedral position in the approximately cubic close packed array of oxygen ions. A similar conclusion has also been reached for ZnxFe3-x04 solid solutions with x = 0.73, 0.54 and 0.35 employing the improved X-ray method. This is consistent with the EXAFS results which indicate an almost unchanged environmental structure around zinc cation in these solid solutions.

Item Type:	Journal Article
Publication:	Journal of the Mining and Materials Processing Institute of Japan
Keywords:	Anomalous X-ray Scattering;Rietveld;Synchrotron Radiation; Ferrite;Spinel;ZnFe204
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	01 Mar 2012 06:24
Last Modified:	01 Mar 2012 06:24
URI:	http://eprints.iisc.ac.in/id/eprint/42691

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