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New approach to treating the energetics of activation processes in the lattice of superionic conductors with intrinsic structural disorder

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Abstract

Using LaF3-type superionic trifluorides as an example, it is shown that the intrinsic thermal structural disorder not affecting the symmetry of the lattice is embodied in light inelastic scattering spectra. Tools for analyzing the Arrhenius-like temperature dependence of the activation energy of disordering in the superionic conductor lattice are discussed. It is found that activation energy ΔEa found from the temperature dependence of the Raman line width is many times lower than energy Ea responsible for LaF3 lattice disordering.

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Authors and Affiliations

  1. Heat Physics Department, Uzbek Academy of Sciences, ul. Katartal 28, Chilanzar, Tashkent, 100135, Uzbekistan

    V. F. Krivorotov

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  1. V. F. Krivorotov
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Correspondence to V. F. Krivorotov.

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Original Russian Text © V.F. Krivorotov, 2013, published in Zhurnal Tekhnicheskoi Fiziki, 2013, Vol. 83, No. 5, pp. 82–87.

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Krivorotov, V.F. New approach to treating the energetics of activation processes in the lattice of superionic conductors with intrinsic structural disorder. Tech. Phys. 58, 704–709 (2013). https://doi.org/10.1134/S1063784213050113

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  • DOI: https://doi.org/10.1134/S1063784213050113

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