Direct Electric-Field Induced Phase Transformation in Paraelectric Zirconia via Electrical Susceptibility Mismatch
Name
PhysRevLett.126.015701.pdf
Description
Published version
Size
1.33 MB
Format
Adobe PDF
Checksum (MD5)
643e098cd2d4a3eb95b98e0cc020cec0
Author(s)
Lai, Alan
Schuh, Christopher A
Date Issued
2021
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Lai, Alan and Schuh, Christopher A. 2021. "Direct Electric-Field Induced Phase Transformation in Paraelectric Zirconia via Electrical Susceptibility Mismatch." Physical Review Letters, 126 (1).
Version
Final published version
Abstract
© 2021 authors. Published by the American Physical Society. Electric field driven phase transformations require two phases with a mismatch in their electric polarization, as seen in antiferroelectric-to-ferroelectric transformations, where the ferroelectric phase has a permanent polarization that is favored under field. Many other nonferroelectric dielectric materials can become electrically polarized according to their electrical susceptibility, yet such induced polarizations are not generally considered capable of enabling a phase transformation. Here we explore a susceptibility-mismatch phase transformation in a paraelectric ceramic, yttria-doped zirconia. Using in situ x-ray diffraction at 550 °C we show that the monoclinic-to-tetragonal transformation can be driven directly by an electric field, providing experimental evidence of a paraelectric-to-paraelectric phase transformation. Considering the ∼1% mechanical strain of this transformation, the resulting electromechanical coupling may have potential for solid-state electrical actuators.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVLETT.126.015701
