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Phase stability and pyroelectricity of antiferroelectric PLZST oxide

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Abstract

Polarization and transmission electron microscopy studies of the Pb0.97La0.02(Zr0.65Sn0.22Ti0.13)O3 (PLZST) ceramics confirmed the antiferroelectric (AFE) nature of this material. The electric-field-induced ferroelectric (FE) phase has a lifetime much longer than the reasonable laboratory time scale at T ≤ 60°C. The observed frequency dispersion of the dielectric constant reflects the competition between AFE and FE orderings. At high temperatures, the induced-FE phase reverses fast to the AFE phase. This process produces a pronounced pyroelectric current. The FE-to-AFE transition temperature can also be tuned by a dc bias field.

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Acknowledgments

The work described in this paper was jointly supported both by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 9360083) and a grant from City University of Hong Kong (Project No. 7001464). One of the authors (HC) also wishes to acknowledge the support from the Tunghai University for the completion of data analysis and manuscript preparation.

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Authors and Affiliations

  1. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong

    Wai-Hung Chan, Zhengkui Xu, Jiwei Zhai, Eugene V. Colla & Haydn Chen

  2. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA

    Eugene V. Colla

  3. Department of Physics, Tunghai University, Taichung, 407, Taiwan

    Haydn Chen

Authors
  1. Wai-Hung Chan
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  2. Zhengkui Xu
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  3. Jiwei Zhai
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  4. Eugene V. Colla
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  5. Haydn Chen
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Correspondence to Zhengkui Xu.

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Chan, WH., Xu, Z., Zhai, J. et al. Phase stability and pyroelectricity of antiferroelectric PLZST oxide. J Electroceram 21, 145–148 (2008). https://doi.org/10.1007/s10832-007-9116-4

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  • DOI: https://doi.org/10.1007/s10832-007-9116-4

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