81 citations · 81 across the 2 of their papers we have counts for
3 papers
cond-mat.mtrl-sci2012
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…
cond-mat.mtrl-sci2008★ 81 cited
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…
cond-mat.mtrl-sci2005
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…