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Iron Valence in Double Perovskites

  • Conference paper
Hyperfine Interactions (C)

Abstract

The valence state of iron in the compounds Ca2FeMoO6, Sr2FeMoO6 Ba2FeMoO6, Ca2FeReO6, Sr2FeReO6, Sr2FeMo1−xW x O6 (x=0.2 and 0.4), and (Sr2−xLax)FeMoO6 (x=0.5 and 0.7), which have been prepared using ceramic and combustion techniques, has been studied using 37Fe Mössbauer spectroscopy. Judging by the isomer shifts and hyperfine fields, intermediate iron oxidation states are found for all these compounds, represented by a 3d5x configuration, where 1<x<5. Here 0.x represents the number of ↓ electrons of Fe(3d) character in the Fe/Mo,W or Fe/Re conduction band.

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Authors and Affiliations

  1. Physics Department, Trinity College, Dublin 2, Ireland

    A. P. Douvalis, M. Venkatesan & J. M. D. Coey

Authors
  1. A. P. Douvalis
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  2. M. Venkatesan
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  3. J. M. D. Coey
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Editor information

Editors and Affiliations

  1. Department of Physics, University of Liverpool, Liverpool, UK

    Michael F. Thomas

  2. Department of Physics, University of Sheffield, Scheffield, UK

    John M. Williams

  3. Department of Chemistry, University of Leeds, Leeds, UK

    Terence C. Gibb

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© 2002 Springer Science+Business Media Dordrecht

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Douvalis, A.P., Venkatesan, M., Coey, J.M.D. (2002). Iron Valence in Double Perovskites. In: Thomas, M.F., Williams, J.M., Gibb, T.C. (eds) Hyperfine Interactions (C). Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0281-3_33

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  • DOI: https://doi.org/10.1007/978-94-010-0281-3_33

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-1087-3

  • Online ISBN: 978-94-010-0281-3

  • eBook Packages: Springer Book Archive

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