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Nanoscale Dynamics of Superdomain Boundaries in Single-Crystal BaTiO3 Lamellae

Authors

  • Pankaj Sharma,

    1. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, NE 68588-0299, USA
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Raymond G. P. McQuaid,

    1. School of Mathematics and Physics, Queen's University of Belfast, Belfast, BT7 1NN, United Kingdom
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Leo J. McGilly,

    1. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, NE 68588-0299, USA
    Current affiliation:
    1. Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland
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  • J. Marty Gregg,

    Corresponding author
    1. School of Mathematics and Physics, Queen's University of Belfast, Belfast, BT7 1NN, United Kingdom
    • School of Mathematics and Physics, Queen's University of Belfast, Belfast, BT7 1NN, United Kingdom.
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  • Alexei Gruverman

    Corresponding author
    1. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, NE 68588-0299, USA
    • Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, NE 68588-0299, USA
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Abstract

original image

In situ piezoresponse force microscopy (PFM) imaging reveals highly non-linear kinetics of the superdomain boundary separating two a-c-domain bundles in BaTiO3 lamellae. It is suggested that this behavior is caused by an unscreened depolarizing field of newly switched domains that counter balances the driving force from the applied electric field.

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