International audienceUsing finite-temperature phonon calculations and the Lyddane-Sachs-Tellerrelations, we calculate ab initio the static dielectric constants of78 semiconducting oxides and fluorides with cubic perovskite structuresat 1000\,K. We first compare our method with experimental measurements,and we find that it succeeds in describing the temperature dependenceand the relative ordering of the static dielectric constant $\epsilon_{DC}$in the series of oxides BaTiO$_{3}$, SrTiO$_{3}$, KTaO$_{3}$. We show that the effects ofanharmonicity on the ion-clamped dielectric constant, on Born charges, and on phonon lifetimes, can be neglected in the framework of our high-throughput study. Based on the high-temperature phonon spectra, we fin...
We report recent and ongoing theoretical studies of the dielectric properties of high-dielectric-con...
Des facteurs fondamentaux pour la performance de matériaux à haute permittivité basés sur des pérovs...
This review will deal with several types of free charge localisation in oxides and their consequence...
International audienceUsing finite-temperature phonon calculations and the Lyddane-Sachs-Tellerrelat...
Using finite-temperature phonon calculations and machine-learning methods, we assess the mechanical ...
This paper reports new data on the hydrostatic-pressure dependence of the conductivity and static di...
Dielectric materials that can realize downsizing and higher performance in electric devices are in d...
673-678The electric field dependence of the complex dielectric constant in anharmonic ferroelectric...
We report calculations indicating that amorphous RAO(3) oxides, with R and A trivalent cations, have...
This review will deal with several types of free charge localization in oxides and their consequence...
Optical conductivity measurements on the perovskite-related oxide CaCu3Ti4O12 provide a hint of the ...
International audienceThe structural, dynamical and dielectric properties of the cubic phase of pero...
Recent developments are reviewed in the search for dielectric ceramics which can operate at temperat...
Dielectric constants of complex perovskite oxide (Ba1-xLax) (Ti1-xCrx)O-3 (BLTC) ceramics with 0.4 &...
Dielectric constants of complex perovskite oxide (Ba1-xLa x)(Ti1-xCrx)O3 (BLTC) ceramics with 0.4&am...
We report recent and ongoing theoretical studies of the dielectric properties of high-dielectric-con...
Des facteurs fondamentaux pour la performance de matériaux à haute permittivité basés sur des pérovs...
This review will deal with several types of free charge localisation in oxides and their consequence...
International audienceUsing finite-temperature phonon calculations and the Lyddane-Sachs-Tellerrelat...
Using finite-temperature phonon calculations and machine-learning methods, we assess the mechanical ...
This paper reports new data on the hydrostatic-pressure dependence of the conductivity and static di...
Dielectric materials that can realize downsizing and higher performance in electric devices are in d...
673-678The electric field dependence of the complex dielectric constant in anharmonic ferroelectric...
We report calculations indicating that amorphous RAO(3) oxides, with R and A trivalent cations, have...
This review will deal with several types of free charge localization in oxides and their consequence...
Optical conductivity measurements on the perovskite-related oxide CaCu3Ti4O12 provide a hint of the ...
International audienceThe structural, dynamical and dielectric properties of the cubic phase of pero...
Recent developments are reviewed in the search for dielectric ceramics which can operate at temperat...
Dielectric constants of complex perovskite oxide (Ba1-xLax) (Ti1-xCrx)O-3 (BLTC) ceramics with 0.4 &...
Dielectric constants of complex perovskite oxide (Ba1-xLa x)(Ti1-xCrx)O3 (BLTC) ceramics with 0.4&am...
We report recent and ongoing theoretical studies of the dielectric properties of high-dielectric-con...
Des facteurs fondamentaux pour la performance de matériaux à haute permittivité basés sur des pérovs...
This review will deal with several types of free charge localisation in oxides and their consequence...