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Title: Faceting oscillations in nano-ferroelectrics

We observe periodic faceting of 8-nm diameter ferroelectric disks on a 10 s time-scale when thin Pb(Zr{sub 0.52}Ti{sub 0.48})O{sub 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)].
Authors:
 [1] ;  [2]
  1. Cavendish Laboratory, Cambridge University, Cambridge (United Kingdom)
  2. CSIR-National Physical Laboratory, Delhi (India)
Publication Date:
OSTI Identifier:
22314499
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FERROELECTRIC MATERIALS; LEAD; LEAD COMPLEXES; NANOSTRUCTURES; OSCILLATIONS; OXYGEN COMPOUNDS; PERIODICITY; PERMALLOY; SPIN; TITANIUM COMPOUNDS; TRANSMISSION ELECTRON MICROSCOPY; ZIRCONIUM COMPOUNDS