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Synthesis of La1 − x Sr x MnO3 + δ manganites by pyrohydrolysis of nitrates

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Abstract

Single-phase finely dispersed perovskite-like manganites La1 − x Sr x MnO3 + δ (0 ≤ x ≤ 0.33) with an average particle size of approximately 3μm were synthesized by the pyrohydrolytic method from a stoichiometric mixture of the corresponding metal nitrates at a temperature of 500°C in a water vapor atmosphere. The parameter δ was changed as a result of the subsequent heat treatment. It was established that the manganite La0.67Sr0.33MnO3 + δ synthesized by the pyrohydrolytic method is characterized by a more pronounced change in the magnetoresistance as compared to the manganite that had the same composition but was synthesized according to the conventional ceramic technique.

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Authors and Affiliations

  1. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620041, Russia

    E. V. Mikhaleva, V. G. Vasil’ev, E. V. Vladimirova & B. V. Slobodin

  2. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia

    A. P. Nosov

Authors
  1. E. V. Mikhaleva
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  2. V. G. Vasil’ev
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  3. A. P. Nosov
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  4. E. V. Vladimirova
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  5. B. V. Slobodin
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Correspondence to V. G. Vasil’ev.

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Original Russian Text © E.V. Mikhaleva, V.G. Vasil’ev, A.P. Nosov, E.V. Vladimirova, B.V. Slobodin, 2009, published in Fizika i Khimiya Stekla.

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Mikhaleva, E.V., Vasil’ev, V.G., Nosov, A.P. et al. Synthesis of La1 − x Sr x MnO3 + δ manganites by pyrohydrolysis of nitrates. Glass Phys Chem 35, 81–86 (2009). https://doi.org/10.1134/S108765960901012X

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