Ferroelectric domain kinetics in congruent LiTaO3

Venkatraman Gopalan, A. Itagi, S. Gerstl, P. Swart, Q. X. Jia, T. E. Mitchell, T. E. Schlesinger, D. D. Stancil

Research output: Contribution to journalConference articlepeer-review

Abstract

We present real-time studies of nucleation and growth of 180° ferroelectric domains in congruent LiTaO3 under an external electric field using optical microscopy. The measured wall velocities are an order of magnitude higher than those reported before using ex-situ techniques. Merger of growing domains form serrated fronts which show a futher order of magnitude increase in wall velocity. A time dependent velocity is required in the Avrami theory to explain the change in domain area versus time at a constant electric field. We believe that these features of domain switching must be considered when studying ferroelectrics in general.

Original languageEnglish (US)
Pages (from-to)137-146
Number of pages10
JournalIntegrated Ferroelectrics
Volume27
Issue number1
DOIs
StatePublished - 1999
EventThe 11th International Symposium on Integrated Ferroelectrics (ISIF99) - Colorado Springs, CO, USA
Duration: Mar 7 1999Mar 10 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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