Email this article Structure, oxygen non-stoichiometry, and phase transitions in Ca1–хPrхMnO3–δ
- Authors: Leonidov I.A.1, Konstantinova E.I.1, Kozhevnikov V.L.1, Samigullina R.F.1
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Affiliations:
- Institute of Solid-State Chemistry, Ural Branch
- Issue: Vol 61, No 5 (2016)
- Pages: 567-571
- Section: Synthesis and Properties of Inorganic Compounds
- URL: https://bakhtiniada.ru/0036-0236/article/view/166409
- DOI: https://doi.org/10.1134/S0036023616050132
- ID: 166409
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Abstract
Manganites Ca1–хPrхMnO3–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.
About the authors
I. A. Leonidov
Institute of Solid-State Chemistry, Ural Branch
Author for correspondence.
Email: leonidov@imp.uran.ru
Russian Federation, Pervomaiskaya ul. 91, Yekaterinburg, 620990
E. I. Konstantinova
Institute of Solid-State Chemistry, Ural Branch
Email: leonidov@imp.uran.ru
Russian Federation, Pervomaiskaya ul. 91, Yekaterinburg, 620990
V. L. Kozhevnikov
Institute of Solid-State Chemistry, Ural Branch
Email: leonidov@imp.uran.ru
Russian Federation, Pervomaiskaya ul. 91, Yekaterinburg, 620990
R. F. Samigullina
Institute of Solid-State Chemistry, Ural Branch
Email: leonidov@imp.uran.ru
Russian Federation, Pervomaiskaya ul. 91, Yekaterinburg, 620990
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