Journal of Advanced Dielectrics, Volume. 14, Issue 5, 2350032(2024)

In-bulk polarization reversal in lithium tantalate with single charged domain wall

Evgeny Greshnyakov... Maria Chuvakova, Andrei Ushakov, Andrey Akhmatkhanov, Mikhail Kosobokov, Victoria Pryakhina and Vladimir Shur* |Show fewer author(s)
Author Affiliations
  • Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg 620002, Russia
  • show less

    This paper presents the results of the first experimental observation of polarization reversal in the bulk of ferroelectric with a charged domain wall (CDW) under the action of an electric field on the example of a single crystal LiTaO3 plate. A CDW was obtained in the sample bulk at the locus of points with a sign change of the composition gradient which results from sample annealing in lithium rich atmosphere. Imaging of the domain structure in the bulk and its evolution on the surface made it possible to detect anomalous domain kinetics, which represents the growth of ledges on the CDW toward the polar surface. The main stages of the domain structure evolution on the polar surface, including the growth of isolated domains, as well as the formation and decay of the maze domain structure, were revealed. An analysis is made for the time dependence of the area fraction occupied by growing domains. We used a kinetic approach based on the analogy between the growth of domains and crystals to explain the obtained results.

    Keywords
    Tools

    Get Citation

    Copy Citation Text

    Evgeny Greshnyakov, Maria Chuvakova, Andrei Ushakov, Andrey Akhmatkhanov, Mikhail Kosobokov, Victoria Pryakhina, Vladimir Shur. In-bulk polarization reversal in lithium tantalate with single charged domain wall[J]. Journal of Advanced Dielectrics, 2024, 14(5): 2350032

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Nov. 20, 2023

    Accepted: Dec. 18, 2023

    Published Online: Jan. 2, 2025

    The Author Email: Shur Vladimir (vladimir.shur@urfu.ru)

    DOI:10.1142/S2010135X23500327

    Topics