Mobility of 180° domain walls in congruent LiTaO3 measured using real-time electro-optic imaging microscopy

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

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We report the electric-field dependence of 180° domain-wall mobility in congruent LiTaO3 measured at room temperature using in situ electro-optic imaging microscopy. The measured sideways domain-wall velocity of serrated domain fronts formed upon merger of domains was an order of magnitude larger than that for independently growing domains. The wall velocities also show a strong dependence on the nature of the applied electric field, being an order of magnitude larger for steady-state voltages as compared to pulsed voltage measurements. This is shown to be due to wall stabilization between applied voltage pulses resulting in an inertial delay in moving a domain wall which has been at rest for many seconds.

Original languageEnglish (US)
Pages (from-to)1638-1646
Number of pages9
JournalJournal of Applied Physics
Volume86
Issue number3
DOIs
StatePublished - Aug 1999

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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