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

Wang, Zhiyang, Webber, Kyle G., Hudspeth, Jessica M., Hinterstein, Manuel and Daniels, John E. 2014, Electric-field-induced paraelectric to ferroelectric phase transformation in prototypical polycrystalline BaTiO₃, Applied physics letters, vol. 105, no. 16, pp. 1-5, doi: 10.1063/1.4898573.

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Title Electric-field-induced paraelectric to ferroelectric phase transformation in prototypical polycrystalline BaTiO₃
Author(s) Wang, Zhiyang
Webber, Kyle G.
Hudspeth, Jessica M.
Hinterstein, Manuel
Daniels, John E.
Journal name Applied physics letters
Volume number 105
Issue number 16
Article ID 161903
Start page 1
End page 5
Total pages 5
Publisher AIP Publishing
Place of publication Melville, N.Y.
Publication date 2014-10-20
ISSN 0003-6951
Summary 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.
Language eng
DOI 10.1063/1.4898573
Field of Research 099999 Engineering not elsewhere classified
09 Engineering
02 Physical Sciences
Socio Economic Objective 0 Not Applicable
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2014, AIP Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30093852

Document type: Journal Article
Collections: Institute for Frontier Materials
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