Uniaxial mechanical stresses and their influence on the parameters of the ferroelectric phase transition in pressure-treated barium titanate

A. M. Pugachev, I. V. Zaytseva, A. S. Krylov, V. K. Malinovsky, N. V. Surovtsev, Yu M. Borzdov, V. I. Kovalevsky

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The dependence of the E(TO) line in Raman spectrum of a BaTiO3 powder on applied uniaxial pressure up to 14 GPa are obtained and the values of residual mechanical stresses are evaluated. The second harmonic generation technique is used to obtain the width and temperature of the cubic-to-tetragonal phase transition in the powder treated by uniaxial pressures. The interrelations between the phase transition width, temperatures, and residual mechanical stresses are established. These interrelations differ from expectations based on known hydrostatic pressure-induced effects in BaTiO3.

Original languageEnglish
Pages (from-to)161-166
Number of pages6
JournalFerroelectrics
Volume508
Issue number1
DOIs
Publication statusPublished - 17 Feb 2017

Keywords

  • BaTiO
  • ferroelectric phase transition
  • residual mechanical stresses
  • second harmonic generation

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