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Dielectric Properties of Sr2 +xBi4 −xTi5 −xTaxO18 Ferroceramics

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Samples of a new layered Sr2 +xBi4 −xTi5 −xTaxO18 (х = 0–0.8) perovskite are produced using state-of-the-art ceramic technology. Their dielectric properties are studied at frequencies of 25 Hz–1 MHz in a wide range of temperatures. It is established that a region undergoing a ferroelectric phase transition acquires 1/f α-type polarization noise. Analysis of parameter α as a function of temperature reveals a feature at a temperature near the Curie temperature, the value of which depends on the concentration of Ta.

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Funding

This work was supported by the Russian Foundation for Basic Research, project no. 18-52-00039-Bel_a.

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Authors and Affiliations

  1. Voronezh State Technical University, 394026, Voronezh, Russia

    N. A. Tolstykh, A. I. Bocharov & M. V. Khakhlenkov

  2. Novovoronezh Nuclear Power Plant, AO Russian Concern for the Production of Electric and Thermal Energy at Nuclear Power Plants, 396070, Novovoronezh, Russia

    A. A. Kamynin

Authors
  1. N. A. Tolstykh
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  2. A. I. Bocharov
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  3. M. V. Khakhlenkov
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  4. A. A. Kamynin
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Corresponding author

Correspondence to N. A. Tolstykh.

Additional information

Translated by O. Maslova

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Tolstykh, N.A., Bocharov, A.I., Khakhlenkov, M.V. et al. Dielectric Properties of Sr2 +xBi4 −xTi5 −xTaxO18 Ferroceramics. Bull. Russ. Acad. Sci. Phys. 83, 1107–1109 (2019). https://doi.org/10.3103/S1062873819090284

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  • DOI: https://doi.org/10.3103/S1062873819090284

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