Faceting oscillations in nano-ferroelectrics

J. F. Scott*, Ashok Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We observe periodic faceting of 8-nm diameter ferroelectric disks on a 10s time-scale when thin Pb(Zr0.52Ti0.48)O-3 film is exposed to constant high-resolution transmission electron microscopy beams. The oscillation is between circular disk geometry and sharply faceted hexagons. The behavior is analogous to that of spin structure and magnetic domain wall velocity oscillations in permalloy [Bisig et al., Nat. Commun. 4, 2328 (2013)], involving overshoot and de-pinning from defects [Amann et al., J. Rheol. 57, 149-175 (2013)]. (C) 2014 AIP Publishing LLC.

Original languageEnglish
Article number052902
Number of pages4
JournalApplied Physics Letters
Volume105
Issue number5
DOIs
Publication statusPublished - 4 Aug 2014

Keywords

  • DOMAIN-WALL
  • GROWTH-MODELS
  • 2 DIMENSIONS
  • LIGHT
  • CRYSTALS
  • PATTERNS

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