Ferroelectric domain reversal in congruent LiTaO3 crystals at elevated temperatures

Charles C. Battle, Sungwon Kim, Venkatraman Gopalan, Kendra Barkocy, Mool C. Gupta, Q. X. Jia, T. E. Mitchell

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We report a four-times decrease in the electric fields for 180° domain reversal in congruent LiTaO3 crystals with an increase in temperature from 22 to 250°C. This is accompanied by a substantial broadening of the field range over which domain reversal takes place, by an order of magnitude. The large internal fields of ∼5.5 kV/mm at room temperature, as measured by the asymmetry in polarization hysteresis loop, disappears at higher temperatures. With increasing temperature, the domain switching changes from lateral growth dominated to nucleation dominated kinetics.

Original languageEnglish (US)
Pages (from-to)2436-2438
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number17
DOIs
StatePublished - Apr 24 2000

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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