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Nanoscale Phase Separation in Ferroelectric Materials

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Abstract

Many materials exhibit nanoscale phase separation, when inside the host thermodynamic phase there arise nanosize embryos of another thermodynamic phase. A prominent example of this phenomenon is provided by ferroelectric materials. The theoretical description of such phase heterogeneous materials is quite challenging, since they are essentially nonuniform, the nonuniformity is random, and often they are quasiequilibrium, but not absolutely equilibrium. An approach is suggested for the theoretical description of phase separated ferroelectrics, consisting of a ferroelectric matrix with nanoscale paraelectric inclusions. The properties of the heterophase ferroelectrics are studied.

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Acknowledgments

The authors acknowledge financial support from the RFBR (grant #14−02−00723).

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Authors and Affiliations

  1. Bogolubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russia

    V. I. Yukalov

  2. Laboratory of Information Technologies, Joint Institute for Nuclear Research, Dubna, 141980, Russia

    E. P. Yukalova

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  1. V. I. Yukalov
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  2. E. P. Yukalova
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Correspondence to V. I. Yukalov.

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Yukalov, V.I., Yukalova, E.P. Nanoscale Phase Separation in Ferroelectric Materials. J Supercond Nov Magn 29, 3119–3126 (2016). https://doi.org/10.1007/s10948-016-3749-y

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  • DOI: https://doi.org/10.1007/s10948-016-3749-y

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