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Transport properties of LaSrNi1 − x ScxOy solid solutions

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Abstract

The formation of LaSrNiO4-and LaSrScO4-based solid solutions with the general stoichiometry LaSrNi1 − x ScxO4 (0 < x < 1) has been studied in air at temperatures from 700 to 1300°C. According to x-ray diffraction results, the former solid solutions exist in the composition range 0 < x ≤ 0.2. Their lattice parameters have been determined, and their resistivity and thermoelectric power have been measured as functions of temperature. Oxygen release and absorption measurements at temperatures from 20 to 1000°C and oxygen partial pressures from 2 to 330 Pa suggest that the presence of scandium has a stabilizing effect on the oxygen sublattice of the solid solutions. The possible mechanisms of this effect are discussed.

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Authors and Affiliations

  1. Institute of General and Inorganic Chemistry, Belarussian Academy of Sciences, ul. Surganova 9, Minsk, 220072, Belarus

    V. F. Savchenko, L. V. Makhnach, I. I. Emel’yanova & V. V. Pan’kov

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  1. V. F. Savchenko
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  2. L. V. Makhnach
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  3. I. I. Emel’yanova
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  4. V. V. Pan’kov
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Original Russian Text © V.F. Savchenko, L.V. Makhnach, I.I. Emel’yanova, V.V. Pan’kov, 2006, published in Neorganicheskie Materialy, 2006, Vol. 42, No. 7, pp. 869–875.

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Savchenko, V.F., Makhnach, L.V., Emel’yanova, I.I. et al. Transport properties of LaSrNi1 − x ScxOy solid solutions. Inorg Mater 42, 788–793 (2006). https://doi.org/10.1134/S002016850607017X

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  • DOI: https://doi.org/10.1134/S002016850607017X

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