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Synthesis and structure of nanocrystalline La0.50Ba0.50MnO3

  • Nanomaterials, Ceramic Materials
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Abstract

Nanocrystalline manganite La0.50Ba0.50MnO3 was synthesized by the soft-chemical method. For this purpose, the sol-gel method was modified and improved. A trihydric saturated alcohol, e.g., glycerol, was suggested as a new organic matrix. The crystal structure of the composite was studied by X-ray powder diffraction at room temperature. A La0.50Ba0.50MnO3 powder annealed in air at T = 500°C is characterized by a perovskite-like cubic structure with the unit-cell parameter a = 3.869 Å. The chemical composition of the sample was studied by electron-probe X-ray microanalysis. The La: Ba: Mn cation ratio in the material was 1: 1: 2. The surface topography was examined with a scanning electron microscope. The crystallite size was ∼30 nm. The dependence of the crystal structure and the surface topology on the annealing temperature was studied. The high-temperature treatment in air resulted in the growth of larger, micrometer-size, crystallites.

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Authors and Affiliations

  1. Joint Institute of Solid-State and Semiconductor Physics, National Academy of Sciences of Belarus, P. Brouki st. 17, Minsk, 220072, Belarus

    S. V. Trukhanov & V. V. Fedotova

  2. Vitebsk State University, Moskovskiy av. 33, Vitebsk, 210036, Belarus

    A. V. Trukhanov & S. G. Stepin

  3. Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland

    H. Szymczak

Authors
  1. S. V. Trukhanov
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  2. V. V. Fedotova
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  3. A. V. Trukhanov
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  4. S. G. Stepin
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  5. H. Szymczak
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Correspondence to S. V. Trukhanov.

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Trukhanov, S.V., Fedotova, V.V., Trukhanov, A.V. et al. Synthesis and structure of nanocrystalline La0.50Ba0.50MnO3 . Crystallogr. Rep. 53, 1177–1180 (2008). https://doi.org/10.1134/S1063774508070158

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  • DOI: https://doi.org/10.1134/S1063774508070158

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