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On the shape of iron K absorption edges for monoferrites with a Me(Mg, Mn, Ni, Zn)Fe2O4 spinel structure

  • Magnetism and Ferroelectricity
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Abstract

Calculations of the K-edge x-ray absorption near-edge structure (XANES) in a pure metal and in monoferrites of stoichiometric compositions MgFe2O4, MnFe2O4, NiFe2O4, and ZnFe2O4 are carried out using a FEFF8 program. It was confirmed that the Fe K-edge energy shift found experimentally occurs upon the transition from pure iron to monoferrites. It is demonstrated that this shift is identically directed for ferrites with a structure of normal (MnFe2O4, ZnFe2O4) and inverted (MgFe2O4, NiFe2O4) spinels, but numerical values of theoretical Fe K-edge shifts agree well with experimental data only for normal spinels.

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Authors and Affiliations

  1. Don State Technical University, Rostov-on-Don, 334010, Russia

    N. Yu. Safontseva & I. Ya. Nikiforov

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  1. N. Yu. Safontseva
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  2. I. Ya. Nikiforov
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Translated from Fizika Tverdogo Tela, Vol. 43, No. 1, 2001, pp. 61–64.

Original Russian Text Copyright © 2001 by Safontseva, Nikiforov.

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Safontseva, N.Y., Nikiforov, I.Y. On the shape of iron K absorption edges for monoferrites with a Me(Mg, Mn, Ni, Zn)Fe2O4 spinel structure. Phys. Solid State 43, 61–64 (2001). https://doi.org/10.1134/1.1340188

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  • DOI: https://doi.org/10.1134/1.1340188

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