The bulk screening field in nonstoichiometric lithium tantalate single crystals

M. A. Chuvakova, A. R. Akhmatkhanov, I. S. Baturin, V. Ya Shur

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The bulk screening being the only possibility for decreasing residual depolarization field and stabilizing tailored domain structures is one of the main factors defining the domain kinetics in ferroelectrics. The bulk screening process was studied in lithium tantalate with lithium stoichiometry [Li]/([Li] + [Ta]) = 48.9%. The main parameters of bulk screening process were extracted from experimental data and compared with those of other representatives of lithium tantalate family. The linear dependence of the maximal value of bulk screening field on lithium stoichiometry was confirmed. The same stretched exponential power indicated that the underlying mechanism of bulk screening process did not change.

Original languageEnglish
Pages (from-to)30-38
Number of pages9
JournalFerroelectrics
Volume541
Issue number1
DOIs
Publication statusPublished - 12 Mar 2019
Externally publishedYes

Keywords

  • bias field
  • Bulk screening
  • domain engineering
  • ferroelectric domains
  • hysteresis loop
  • lithium tantalate
  • polarization reversal

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