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Depolarization of multidomain ferroelectric materials

Author

Listed:
  • Dong Zhao

    (Max-Planck Institute for Polymer Research
    Max-Planck Institute for Polymer Solid-State Research)

  • Thomas Lenz

    (Max-Planck Institute for Polymer Research
    Graduate School Materials Science in Mainz)

  • Gerwin H. Gelinck

    (Holst Centre
    Eindhoven University of Technology)

  • Pim Groen

    (Holst Centre
    Delft University of Technology)

  • Dragan Damjanovic

    (Swiss Federal Institute of Technology—EPFL)

  • Dago M. Leeuw

    (Max-Planck Institute for Polymer Research
    Delft University of Technology)

  • Ilias Katsouras

    (Holst Centre)

Abstract

Depolarization in ferroelectric materials has been studied since the 1970s, albeit quasi-statically. The dynamics are described by the empirical Merz law, which gives the polarization switching time as a function of electric field, normalized to the so-called activation field. The Merz law has been used for decades; its origin as domain-wall depinning has recently been corroborated by molecular dynamics simulations. Here we experimentally investigate domain-wall depinning by measuring the dynamics of depolarization. We find that the boundary between thermodynamically stable and depolarizing regimes can be described by a single constant, Pr/ε0εferroEc. Among different multidomain ferroelectric materials the values of coercive field, Ec, dielectric constant, εferro, and remanent polarization, Pr, vary by orders of magnitude; the value for Pr/ε0εferroEc however is comparable, about 15. Using this extracted universal value, we show that the depolarization field is similar to the activation field, which corresponds to the transition from creep to domain-wall flow.

Suggested Citation

  • Dong Zhao & Thomas Lenz & Gerwin H. Gelinck & Pim Groen & Dragan Damjanovic & Dago M. Leeuw & Ilias Katsouras, 2019. "Depolarization of multidomain ferroelectric materials," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10530-4
    DOI: 10.1038/s41467-019-10530-4
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    Cited by:

    1. Wei, Jian & Zhou, Yuqi & Wang, Yuan & Miao, Zhuang & Guo, Yupeng & Zhang, Hao & Li, Xueting & Wang, Zhipeng & Shi, Zongmo, 2023. "A large-sized thermoelectric module composed of cement-based composite blocks for pavement energy harvesting and surface temperature reducing," Energy, Elsevier, vol. 265(C).

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