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Analysis of the dynamics of electrocaloric response in ferroelectrics using a ferromagnetic resonator

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Abstract

A method is proposed for studying the dynamics of the electrocaloric response of a ferroelectric capacitor to the pulsed action of the electric field, and the results of measurements are reported. The temperature of the capacitor was measured with the help of a ferromagnetic film resonator. The sensitivity of temperature measurements was ∼10−4 K/kHz. The recalculated temperature dependence of the resonance frequency showed that the ferroelectric ceramic sample was heated by 0.065 K and was cooled by 0.041 K relative to the thermostat temperature under the action of high-voltage pulses. The relaxation time of the electrocaloric effect of the 0.87PMN-0.13PT relaxor ferroelectric ceramic is 4.5 μs.

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Authors and Affiliations

  1. St. Petersburg State Electrical Engineering University “LETI,”, ul. Prof. Popova 5, St. Petersburg, 197376, Russia

    A. A. Semenov, P. Yu. Beliavskiy, A. V. Es’kov, S. F. Karmanenko & A. A. Nikitin

  2. St. Petersburg State University of Low-Temperature and Food Technologies, ul. Lomonosova 9, St. Petersburg, 191002, Russia

    O. V. Pakhomov

Authors
  1. A. A. Semenov
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  2. O. V. Pakhomov
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  3. P. Yu. Beliavskiy
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  4. A. V. Es’kov
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  5. S. F. Karmanenko
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  6. A. A. Nikitin
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Correspondence to P. Yu. Beliavskiy.

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Original Russian Text © Semenov, O.V. Pakhomov, P.Yu. Beliavskiy, A.V. Es’kov, S.F. Karmanenko, A.A. Nikitin, 2012, published in Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 82, No. 1, pp. 59–62.

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Semenov, A.A., Pakhomov, O.V., Beliavskiy, P.Y. et al. Analysis of the dynamics of electrocaloric response in ferroelectrics using a ferromagnetic resonator. Tech. Phys. 57, 55–58 (2012). https://doi.org/10.1134/S1063784212010227

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  • DOI: https://doi.org/10.1134/S1063784212010227

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