81 citations · 81 across the 3 of their papers we have counts for
4 papers · 1 filter
Giant photostriction in lead-free ferroelectric stemming from photo-excited thermalized carriers
Gaëlle Vitali-Derrien, Oana Condurache, Antoine Ducournau +14
Ferroelectrics are polar materials whose polarization can be switched by applying electric fields; they offer unique opportunities to develop performant photostrictive materials, i…
Emergence of central mode in the paraelectric phase of ferroelectric perovskites
J. Weerasinghe, L. Bellaiche, T. Ostapchuk +5
THz-range dielectric spectroscopy and first-principle-based effective-Hamiltonian molecular dynamics simulations were employed to elucidate the dielectric response in the paraelect…
Room temperature surface piezoelectricity in SrTiO3 ceramics via piezoresponse force microscopy
Andrei Kholkin, Igor Bdikin, Tetyana Ostapchuk +1
SrTiO3 ceramics are investigated by piezoresponse force microscopy. Piezoelectric contrast is observed on polished surfaces in both vertical and lateral regimes and depends on the…
Anisotropic dielectric function in polar nano-regions of relaxor ferroelectrics
J. Hlinka, T. Ostapchuk, D. Noujni +2
The paper suggests to treat the infrared reflectivity spectra of single crystal perovskite relaxors as fine-grained ferroelectric ceramics: locally frozen polarization makes the di…