Journal
PHYSICAL REVIEW B
Volume 91, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.91.144104
Keywords
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Funding
- National Science Foundation (NSF) [DMR-1037898]
- U.S. DOE by Iowa State University [DE-AC02-07CH11358]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1037898] Funding Source: National Science Foundation
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Electric fields are generally known to favor the ferroelectric polar state over the antiferroelectric nonpolar state for their Coulomb interactions with dipoles in the crystal. In this paper, we directly image an electric-field-assisted ferroelectric-to-antiferroelectric phase transition during polarization reversal of the ferroelectric phase in polycrystalline Pb-0.99{Nb-0.02[(Zr0.57Sn0.43)(0.92)Ti-0.08](0.98)}O-3. With the electric-field in situ transmission electron microscopy technique, such an unlikely phenomenon is verified to occur by both domain morphology change and electron-diffraction analysis. The slower kinetics of the phase transition, compared with ferroelectric polarization reversal, is suggested to contribute to this unusual behavior.
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