Abstract
The electric properties of ceramic barium titanate stannate modified with chromium oxide are examined via impedance spectroscopy at frequencies ranging from 100 Hz to 1 MHz and in the temperature interval of 300–550 K. In order to reveal specific electrophysical features of polycrystalline samples that contain crystallites (interior regions of grains) and grain boundaries, a constant electric field that facilitates the accumulation of spatial charge near structural inhomogeneities is applied to the electrodes. The experimental results are interpreted using the Maxwell–Wagner double-layer capacitor model and the Schottky barrier model.
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Original Russian Text © G.S. Grigoryan, V.S. Kornyuschina, A.M. Solodukha, 2016, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2016, Vol. 80, No. 9, pp. 1286–1289.
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Grigoryan, G.S., Kornyuschina, V.S. & Solodukha, A.M. Specific features of charge relaxation in the solid solution of barium titanate stannate in the presence of a constant electric field. Bull. Russ. Acad. Sci. Phys. 80, 1172–1175 (2016). https://doi.org/10.3103/S1062873816090185
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DOI: https://doi.org/10.3103/S1062873816090185