Abstract
Manganites Ca1–х Pr х MnO3–δ, where 0 ≤ х ≤ 0.15 were studied. The compounds have orthorhombic structure (space group Pnma) at ambient temperature, which consecutively transforms on heating in air into phases with tetragonal I4/mcm and cubic 000000 structure. Increase in praseodymium concentration leads to higher phase transition temperatures, lower heat of structural transformations, more narrow homogeneity range of oxygen, and a wider temperature interval of tetragonal I4/mcm phase existence.
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Original Russian Text © I.A. Leonidov, E.I. Konstantinova, V.L. Kozhevnikov, R.F. Samigullina, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 5, pp. 595–599.
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Leonidov, I.A., Konstantinova, E.I., Kozhevnikov, V.L. et al. Structure, oxygen non-stoichiometry, and phase transitions in Ca1–х Pr х MnO3–δ . Russ. J. Inorg. Chem. 61, 567–571 (2016). https://doi.org/10.1134/S0036023616050132
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DOI: https://doi.org/10.1134/S0036023616050132