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Dielectric and phase transition of BaTi0.6Zr0.4O3 ceramics prepared by a soft chemical route

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Abstract

BaTi0.6Zr0.4O3 (BTZ) ceramic was synthesized by a soft chemical route. X-ray diffraction at room temperature shows that the sample has cubic perovskite structure with space group Pm-3m. Temperature dependent dielectric study of the sample has been investigated in the frequency range from 50 Hz to 1 MHz. The density of the sample was determined using Archimedes’ principle and found to be ∼ 97% of the X-ray density. The average grain size in the pallet was found to be ∼ 1 μm. The dielectric constant peaks at temperature Tm which is dependent on the frequency. The dielectric relaxation rate follows the Vogel–Fulcher relation with activation energy = 0.0185 eV, and freezing temperature = 186 K. All these measurements confirm that BTZ is a relaxor ferroelectric.

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Authors and Affiliations

  1. Department of Applied Physics, BIT, Mesra, Ranchi, 835215, India

    S.K. Rout & P.K. Barhai

  2. Department of Physics, NIT, Rourkela, 769008, India

    T. Badapanda, E. Sinha & S. Panigrahi

  3. Department of Physics, Bose Institute, 93/1 A.P.C. Road, Kolkata, 700009, India

    T.P. Sinha

Authors
  1. S.K. Rout
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  2. T. Badapanda
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  3. E. Sinha
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  4. S. Panigrahi
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  5. P.K. Barhai
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  6. T.P. Sinha
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Corresponding author

Correspondence to S.K. Rout.

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PACS

77.22.Jp; 77.84.-s; 77.80.Bh; 77.22.Gm

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Rout, S., Badapanda, T., Sinha, E. et al. Dielectric and phase transition of BaTi0.6Zr0.4O3 ceramics prepared by a soft chemical route. Appl. Phys. A 91, 101–106 (2008). https://doi.org/10.1007/s00339-007-4366-1

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  • DOI: https://doi.org/10.1007/s00339-007-4366-1

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