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Valence state of manganese ions in the La1−α BiLaβMnLa1−δ OLa3±γ ceramics

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Abstract

The valence state of the Mn ions in ceramic samples of the La1−α BiLaβMnLa1−δ OLa3±γ composition (LBMO) has been studied using the X-ray photoelectron spectroscopy. The presence of Mn3+ and Mn4+ ions in these compounds has been shown. The relative content Mn3+/Mn4+ has been determined by means of fitting the experimental Mn 2p spectra by the superposition of theoretical spectra of Mn3+ and Mn4+ ions. The elemental composition of the samples has been determined by the X-ray photoelectron spectroscopy and electron probe microanalysis. It has been established that the relative content of Mn4+ ions correlates with parameter δ, which characterizes the deviation of the actual elemental composition of the La1−α BiLaβMnLa1−δ OLa3±γ ceramics from stoichiometry La1 − x Bi x MnO3.

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Authors and Affiliations

  1. Rostov State Transport University, pl. Narodnogo Opolcheniya 2, Rostov-on-Don, 344038, Russia

    A. G. Kochur

  2. Scientific Research Institute of Physics of the Southern Federal University, pr. Stachki 194, Rostov-on-Don, 344090, Russia

    A. T. Kozakov, A. V. Nikol’skii, K. A. Guglev, A. V. Pavlenko, I. A. Verbenko, L. A. Reznichenko & S. I. Shevtsova

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  1. A. G. Kochur
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  2. A. T. Kozakov
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  3. A. V. Nikol’skii
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  4. K. A. Guglev
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  5. A. V. Pavlenko
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  6. I. A. Verbenko
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  7. L. A. Reznichenko
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  8. S. I. Shevtsova
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Correspondence to A. T. Kozakov.

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Original Russian Text © A.G. Kochur, A.T. Kozakov, A.V. Nikol’skii, K.A. Guglev, A.V. Pavlenko, I.A. Verbenko, L.A. Reznichenko, S.I. Shevtsova, 2013, published in Fizika Tverdogo Tela, 2013, Vol. 55, No. 4, pp. 684–687.

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Kochur, A.G., Kozakov, A.T., Nikol’skii, A.V. et al. Valence state of manganese ions in the La1−α BiLaβMnLa1−δ OLa3±γ ceramics. Phys. Solid State 55, 743–747 (2013). https://doi.org/10.1134/S1063783413040148

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  • DOI: https://doi.org/10.1134/S1063783413040148

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