78 citations · 126 across the 4 of their papers we have counts for
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Direct visualization of antiferroelectric switching dynamics via electrocaloric imaging
Pablo Vales-Castro, Miquel Vellvehi, Xavier Perpiñà +8
The large electrocaloric coupling in PbZrO3 allows using high-speed infrared imaging to visualize antiferroelectric switching dynamics via the associated temperature change. We fin…
A re-examination of antiferroelectric PbZrO and PbHfO: an 80-atom structure
J. S. Baker, M. Paściak, J. K. Shenton +8
First principles density functional theory (DFT) simulations of antiferroelectric (AFE) PbZrO and PbHfO reveal a dynamical instability in the phonon spectra of their purpor…
Origin of the Large Negative Electrocaloric Effect in Antiferroelectric PbZrO3
Pablo Vales-Castro, Romain Faye, Miquel Vellvehi +9
We have studied the electrocaloric response of the archetypal antiferroelectric PbZrO3 as a function of voltage and temperature in the vicinity of its antiferroelectric-paraelectri…
Flexoelectricity in antiferroelectric ceramics
P. Vales-Castro, Krystian Roleder, Lei Zhao +3
Flexoelectricity (coupling between polarization and strain gradients) is a property of all dielectric materials that has been theoretically known for decades, but it is only relati…