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Electrical properties of Pb0.98Eu0.02(ZryTi1−y)0.995O3 prepared by sol–gel processing

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Abstract

A Pb0.98Eu0.02(ZryTi1−y )0.995O3 compound series, with y = 0.60, 0.53 and 0.45 was prepared. PZT samples were synthesized by sol–gel technique. The crystallization and quality of the compounds were analyzed by powder X-ray diffraction and electron microscopy. The shape of the ε′(ω) vs T curves can be considered typical of a ferro-paraelectric transition. The ferro-paraelectric transition temperature for each composition was 348, 328 and 307°C, for the y = 0.45, 0.53 and 0.60, respectively. σ′(ω) is strongly influenced by short range processes. For the logσ′(ω) curves as function of temperature, there is evidence of a non dispersive dc-conductivity component for the high temperature region. The associated dc-activation energies are larger than those calculated for the ac region (at lower temperatures).

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Acknowledgements

We wish to acknowledge R. Reyes for his technical assistance. Work supported by DGAPA UNAM IN103603 and, CONACyT-SEP-2004-CO1-47541. We thank the comments of the Referees and their useful observations.

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Authors and Affiliations

  1. Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de Mexico, A. P. 70-360, Mexico D.F., Mexico

    Federico González, María-Elena Villafuerte-Castrejón & Alfonso Huanosta

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  1. Federico González
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  2. María-Elena Villafuerte-Castrejón
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  3. Alfonso Huanosta
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Correspondence to Federico González.

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González, F., Villafuerte-Castrejón, ME. & Huanosta, A. Electrical properties of Pb0.98Eu0.02(ZryTi1−y)0.995O3 prepared by sol–gel processing. J Electroceram 18, 323–327 (2007). https://doi.org/10.1007/s10832-007-9175-6

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  • DOI: https://doi.org/10.1007/s10832-007-9175-6

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