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Phase composition and structure of La1 − x Ca x MnO3 + δ (0 ≤ x ≤ 0.2) solid solutions

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Abstract

A structural phase diagram of La1 − x Ca x MnO3 + δ (0 ≤ x ≤ 0.2) solid solution in air has been constructed for the first time, and the equilibrium T-x fields of the monoclinic, orthorhombic, and rhombohedral phases in this system have been outlined. The transitions between these phases are accompanied by sharp changes in lattice parameters, suggesting that they are first-order.

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Authors and Affiliations

  1. Institute of Metallurgy, Ural Division, Russian Academy of Sciences, ul. Amundsena 101, Yekaterinburg, 620016, Russia

    S. Kh. Estemirova, A. M. Yankin, S. G. Titova & V. F. Balakirev

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

    Yu. E. Turkhan

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  1. S. Kh. Estemirova
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  2. A. M. Yankin
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  3. S. G. Titova
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Correspondence to S. Kh. Estemirova.

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Original Russian Text © S.Kh. Estemirova, A.M. Yankin, S.G. Titova, V.F. Balakirev, Yu.E. Turkhan, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 11, pp. 1387–1392.

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Estemirova, S.K., Yankin, A.M., Titova, S.G. et al. Phase composition and structure of La1 − x Ca x MnO3 + δ (0 ≤ x ≤ 0.2) solid solutions. Inorg Mater 44, 1251–1256 (2008). https://doi.org/10.1134/S0020168508110204

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  • DOI: https://doi.org/10.1134/S0020168508110204

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