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Mechanism of formation of the complex oxide Gd2SrFe2O7

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Abstract

The mechanism of formation of the perovskite-like layered structure of the oxide Gd2SrFe2O7 was studied. The limiting stages are those of formation of phases with perovskite (GdFeO3, SrFeO3−x ) and K2NiF4 (GdSrFeO4) structures. The Mössbauer study has shown that iron atoms exist in a heterovalent state (Fe3+ and Fe4+) only in the structure of SrFeO3−x ).

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Authors and Affiliations

  1. St. Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia

    I. A. Zvereva, I. V. Otrepina & V. G. Semenov

  2. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, Russia

    E. A. Tugova, V. F. Popova & V. V. Gusarov

Authors
  1. I. A. Zvereva
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  2. I. V. Otrepina
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  3. V. G. Semenov
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  4. E. A. Tugova
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  5. V. F. Popova
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  6. V. V. Gusarov
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Additional information

Original Russian Text © I.A. Zvereva, I.V. Otrepina, V.G. Semenov, E.A. Tugova, V.F. Popova, V.V. Gusarov, 2007, published in Zhurnal Obshchei Khimii, 2007, Vol. 77, No. 6, pp. 881–886.

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Zvereva, I.A., Otrepina, I.V., Semenov, V.G. et al. Mechanism of formation of the complex oxide Gd2SrFe2O7 . Russ J Gen Chem 77, 973–978 (2007). https://doi.org/10.1134/S1070363207060011

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  • DOI: https://doi.org/10.1134/S1070363207060011

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