Deakin University
Browse

Electric-field-induced paraelectric to ferroelectric phase transformation in prototypical polycrystalline BaTiO₃

Download (1.28 MB)
Version 2 2024-06-13, 10:18
Version 1 2017-04-07, 13:38
journal contribution
posted on 2014-10-20, 00:00 authored by Zhiyang Wang, K G Webber, J M Hudspeth, M Hinterstein, J E Daniels
© 2014 AIP Publishing LLC.An electric-field-induced paraelectric cubic to ferroelectric tetragonal phase transformation has been directly observed in prototypical polycrystalline BaTiO3 at temperatures above the Curie point (TC) using in situ high-energy synchrotron X-ray diffraction. The transformation persisted to a maximum temperature of 4-°C above TC. The nature of the observed field-induced transformation and the resulting development of domain texture within the induced phase were dependent on the proximity to the transition temperature, corresponding well to previous macroscopic measurements. The transition electric field increased with increasing temperature above TC, while the magnitude of the resultant tetragonal domain texture at the maximum electric field (4-kV mm-1) decreased at higher temperatures. These results provide insights into the phase transformation behavior of a prototypical ferroelectric and have important implications for the development of future large-strain phase-change actuator materials.

History

Journal

Applied physics letters

Volume

105

Issue

16

Article number

161903

Pagination

1 - 5

Publisher

AIP Publishing

Location

Melville, N.Y.

ISSN

0003-6951

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2014, AIP Publishing

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC