Two-dimensional mapping of polarizations of rhombohedral nanostructures in the orthorhombic phase of KNbO3by the combined use of scanning transmission electron microscopy and convergent-beam electron diffraction

Kenji Tsuda; Michiyoshi Tanaka

doi:10.7567/APEX.8.081501

Two-dimensional mapping of polarizations of rhombohedral nanostructures in the orthorhombic phase of KNbO₃by the combined use of scanning transmission electron microscopy and convergent-beam electron diffraction

Kenji Tsuda, Michiyoshi Tanaka

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Rhombohedral nanostructures previously found in the orthorhombic phase of KNbO₃, by convergent-beam electron diffraction [Tsuda et al., Appl. Phys. Lett. 102, 051913 (2013)], have been investigated by the combined use of scanning transmission electron microscopy and convergent-beam electron diffraction. Two-dimensional distributions of the rhombohedral nanostructures, or nanometer-scale spatial fluctuations of polarization clusters, have been successfully visualized. The correlation length of the observed spatial fluctuations of local polarizations is related to the c_pc/a_pcratio and the transition entropy.

Original language	English
Article number	081501
Journal	Applied Physics Express
Volume	8
Issue number	8
DOIs	https://doi.org/10.7567/APEX.8.081501
Publication status	Published - 2015 Aug 1

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Two-dimensional mapping of polarizations of rhombohedral nanostructures in the orthorhombic phase of KNbO₃by the combined use of scanning transmission electron microscopy and convergent-beam electron diffraction. / Tsuda, Kenji; Tanaka, Michiyoshi.

In: Applied Physics Express, Vol. 8, No. 8, 081501, 01.08.2015.

Research output: Contribution to journal › Article › peer-review

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