Abstract
The ferroelectric polarization loop of an epitaxial BiFeO3 film on a piezoelectric substrate has been investigated as a function of continuously and reversibly varied biaxial strain of ε=0.36%–0.51%. Over this range, the ferroelectric coercive field (EC) at 80 K increases reversibly by 36% with the increasing tensile strain. In contrast, phase-field simulations predict the opposite trend of dEC/dε<0. Therefore, we attribute the observed EC(ε) dependence to the strain dependence of domain dynamics, which are not included in thermodynamic models. The strain dependence of the remanent polarization agrees with previous results.
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Dates
Type | When |
---|---|
Created | 14 years, 4 months ago (April 6, 2011, 3:14 p.m.) |
Deposited | 2 years, 1 month ago (July 2, 2023, 11:05 a.m.) |
Indexed | 4 weeks, 2 days ago (July 30, 2025, 6:56 a.m.) |
Issued | 14 years, 4 months ago (April 4, 2011) |
Published | 14 years, 4 months ago (April 4, 2011) |
Published Online | 14 years, 4 months ago (April 5, 2011) |
Published Print | 14 years, 4 months ago (April 4, 2011) |
Funders
1
U.S. Department of Energy
10.13039/100000015
Region: Americas
gov (National government)
Labels
8
- Energy Department
- Department of Energy
- United States Department of Energy
- ENERGY.GOV
- US Department of Energy
- USDOE
- DOE
- USADOE
@article{Biegalski_2011, title={Strong strain dependence of ferroelectric coercivity in a BiFeO3 film}, volume={98}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3569137}, DOI={10.1063/1.3569137}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Biegalski, M. D. and Kim, D. H. and Choudhury, S. and Chen, L. Q. and Christen, H. M. and Dörr, K.}, year={2011}, month=apr }