144 citations · 293 across the 7 of their papers we have counts for
8 papers
Experimentally constrained modeling of the Pockels response of KNbO3 and KTaNbO3
Virginie de Mestral, Lorenzo Bastonero, Petr Bednyakov +6
The soft-mode of electro-optic (EO) metal-oxide perovskites plays a critical role in determining their Pockels responses. This is the case of potassium tantalate niobate (KTN), whi…
Giant dielectric permittivity in Nb-doped rutile crystals
D. Nuzhnyy, V. Bovtun, J. Petzelt +13
Dielectric properties of Nb-doped (~1.5 at%) rutile single crystals were studied in the 10-300 K temperature range (at frequencies below the MHz range down to 0.3 K) in a broad fre…
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…
Multiple soft-mode vibrations of lead zirconate
J. Hlinka, T. Ostapchuk, E. Buixaderas +7
Polarized Raman, IR and time-domain THz spectroscopy of orthorhombic lead zirconate single crystals yielded a comprehensive picture of temperature-dependent quasiharmonic frequenci…
Broadband dielectric spectroscopy of Ba(Zr,Ti)O3: dynamics of relaxors and diffuse ferroelectrics
J. Petzelt, D. Nuzhnyy, M. Savinov +6
Broadband dielectric spectroscopy from Hz up to the infrared (IR) range and temperature interval 10-300 K was carried out for xBaZrO3-(1-x)BaTiO3 (BZT-x, x = 0.6, 0.7, 0.8) solid s…
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…