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

Research output: Contribution to journalArticlepeer-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 cpc/apcratio and the transition entropy.

Original languageEnglish
Article number081501
JournalApplied Physics Express
Volume8
Issue number8
DOIs
Publication statusPublished - 2015 Aug 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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