Abstract
The longitudinal conductivity of La1 − x Sr x F3 − x solid solution films (x = 0–0.24) with thicknesses of 40–260 nm grown on glass ceramics at temperatures from room temperature to 300°C and frequencies of 10−1–106 Hz was studied by impedance spectroscopy. The concentration dependence of film conductivity on the SrF2 content had a maximum near x = 0.05. An equivalent circuit was constructed on the basis of the impedance plots to describe migration processes. The DC conductivity was evaluated for all samples under study. The activation energies were estimated from the temperature dependences of the DC conductivities of the films. The resulting dependences of electrophysical parameters were compared with those for bulk materials in terms of the relaxation conductivity model.
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Original Russian Text © T.Yu. Vergentyev, E.Yu. Koroleva, A.G. Banshchikov, N.S. Sokolov, A.G. Chibisov, 2013, published in Elektrokhimiya, 2013, Vol. 49, No. 8, pp. 872–877.
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Vergentyev, T.Y., Koroleva, E.Y., Banshchikov, A.G. et al. Longitudinal conductivity of thin films of La1 − x Sr x F3 − x solid solutions on glass ceramics. Russ J Electrochem 49, 783–787 (2013). https://doi.org/10.1134/S102319351308020X
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DOI: https://doi.org/10.1134/S102319351308020X