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Temperature and frequency dependences of real part of impedance in the FeCoZr-doped PZT nanogranular composites

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Materials Science-Poland

Abstract

The study of carrier transport in granular nanocomposite films consisting of ferromagnetic Fe45Co45Zr10 alloy nanoparticles embedded in a low-conductive Pb81Sr4(Na5Bi5)15(Zr57.5Ti42.5)O3 matrix has been performed. Real part of the impedance of the nanocomposites was studied as a function of composition, temperature and frequency, for the samples with 25 ≤ x ≤ 80 at.%, deposited by ion-beam sputtering in Ar + O2 gas mixture at the oxygen pressures of \(P_{O_2 } \) = 2.4·10−3 and 3.7·10−3 Pa. It has been proved that approaching the threshold concentration, x C in the FeCoZr alloy resulted in the transition from high-ohmic to low-ohmic state with the x increase, without the change of hopping mechanism of carrier transport.

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Authors and Affiliations

  1. Belarusian State University, 4 Nezavisimosti Str., 220030, Minsk, Belarus

    Andrei V. Larkin & Alexander K. Fedotov

  2. National Center of Particles and High Energy Physics of BSU, 153 M. Bogdanovich Str., 220040, Minsk, Belarus

    Julia A. Fedotova

  3. Lublin University of Technology, 38a Nadbystrzycka Str., 20-618, Lublin, Poland

    Tomasz N. Koltunowicz & Pawel Zhukowski

Authors
  1. Andrei V. Larkin
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  2. Alexander K. Fedotov
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  3. Julia A. Fedotova
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  4. Tomasz N. Koltunowicz
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  5. Pawel Zhukowski
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Corresponding author

Correspondence to Tomasz N. Koltunowicz.

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Larkin, A.V., Fedotov, A.K., Fedotova, J.A. et al. Temperature and frequency dependences of real part of impedance in the FeCoZr-doped PZT nanogranular composites. Mater Sci-Pol 30, 75–81 (2012). https://doi.org/10.2478/s13536-012-0015-2

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  • DOI: https://doi.org/10.2478/s13536-012-0015-2

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