Electric-field response of polar nanodomains in BaTiO3

D. Morikawa, K. Tsuda

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In this study, we have investigated the electric-field response of polar nanodomains in the ferroelectric tetragonal phase of BaTiO3. Polar nanodomains were observed by a combination of scanning transmission electron microscopy (STEM) and convergent-beam electron diffraction (CBED). By applying an electric-field, significant changes in the distributions of nanometer-size domains were observed, besides the changes in the configurations of mesoscopic 90° and 180° ferroelectric domains. The obtained CBED patterns are categorized into three. One has higher tetragonal symmetry, and the other two show a deviation from tetragonal symmetry and exhibit a left-right reversal relation with each other. We propose a structural model of the rhombohedral nanodomain redistribution to reproduce the observed CBED patterns. The model consists of a balanced change in volume and size of rhombohedral nanodomains.

本文言語English
論文番号052904
ページ(範囲)1ENG
ジャーナルApplied Physics Letters
119
5
DOI
出版ステータスPublished - 2021 8 2

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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