Effect of electric field and temperature on average structure and domain wall motion in 0.93Bi0.5Na0.5TiO3-0. 07BaTiO3 ceramic

Jian Wang, Yun Liu*, Andrew Studer, Lasse Norén, Ray Withers

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In situ neutron powder diffraction patterns and dielectric spectra of 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramic were investigated under different electrical fields and temperatures. An electric-field-induced phase transition from metrically cubic to metrically tetragonal, associated with strong domain wall motion, occurs. Such induced phase and domain wall motion are unchanged until the high-temperature phase transition occurs from metrically tetragonal to metrically cubic. All these changes are irrelevant to the observed depolarization temperature (75°C). The depolarization behaviour is thus suggested to be associated with the local structure caused by the octahedral tilt twinning disorder.

    Original languageEnglish
    Article number830971
    JournalAdvances in Condensed Matter Physics
    Volume2013
    DOIs
    Publication statusPublished - 2013

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