Abstract
The structural parameters of La1 – x Sr x MnO3 ± γ solid solutions sintered at different temperatures are refined using chemical analysis, x-ray fluorescence, and Rietveld profile analysis data. The samples are shown to consist of two rhombohedrally distorted perovskite phases (sp. gr. R \(\overline 3 \) c and R3m) identical in chemical composition and containing excess oxygen. The electrical properties and magnetoresistive response of the Sr-doped lanthanum manganite ceramics depend on the relative amounts of these phases. The origin of structural disordering in the materials studied is discussed.
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Belous, A.G., V'yunov, O.I., Pashkova, E.V. et al. Effects of Chemical Composition and Sintering Temperature on the Structure of La1 – x Sr x MnO3 ± γ Solid Solutions. Inorganic Materials 39, 161–170 (2003). https://doi.org/10.1023/A:1022198613723
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DOI: https://doi.org/10.1023/A:1022198613723