Longitudinal piezoelectric coefficient of a twinned ferroelectric perovskite material with an array of partially
compensated head-to-head and tail-to-tail 90-degree domain walls has been studied by phase-field simulations in
the framework of the Ginzburg-Landau-Devonshire model of BaTiO 3 ferroelectric. In particular, it is shown that
the magnitude of the build-in extrinsic charge at the domain wall and the nanoscale domain size can both promote
rotation of the static polarization vector within the body of adjacent domains. This polarization rotation drives
the domain closer to an orthorhombic state, and the proximity to this ferroelectric-ferroelectric phase transition
is directly responsible for the enhancement of the properties. Our simulations and the theory also suggest that
the same system with nominally overcompensated charged walls may show a negative effective longitudinal
piezoelectric coefficient. The obtained results can be used for quantitative estimates of piezoelectric properties
of domain-engineered crystals.
%0 Journal Article
%1 ondrejkovic:2013:piezoelectric
%A Ondrejkovic, P.
%A Marton, P.
%A Guennou, M.
%A Setter, N.
%A Hlinka, J.
%D 2013
%I American Physical Society
%J Phys. Rev. B
%K BaTiO3 charged_domain_walls domain_walls phase_field theory
%N 2
%P 024114
%R 10.1103/PhysRevB.88.024114
%T Piezoelectric properties of twinned ferroelectric perovskites with head-to-head and tail-to-tail domain walls
%U https://link.aps.org/doi/10.1103/PhysRevB.88.024114
%V 88
%X Longitudinal piezoelectric coefficient of a twinned ferroelectric perovskite material with an array of partially
compensated head-to-head and tail-to-tail 90-degree domain walls has been studied by phase-field simulations in
the framework of the Ginzburg-Landau-Devonshire model of BaTiO 3 ferroelectric. In particular, it is shown that
the magnitude of the build-in extrinsic charge at the domain wall and the nanoscale domain size can both promote
rotation of the static polarization vector within the body of adjacent domains. This polarization rotation drives
the domain closer to an orthorhombic state, and the proximity to this ferroelectric-ferroelectric phase transition
is directly responsible for the enhancement of the properties. Our simulations and the theory also suggest that
the same system with nominally overcompensated charged walls may show a negative effective longitudinal
piezoelectric coefficient. The obtained results can be used for quantitative estimates of piezoelectric properties
of domain-engineered crystals.
@article{ondrejkovic:2013:piezoelectric,
abstract = {Longitudinal piezoelectric coefficient of a twinned ferroelectric perovskite material with an array of partially
compensated head-to-head and tail-to-tail 90-degree domain walls has been studied by phase-field simulations in
the framework of the Ginzburg-Landau-Devonshire model of BaTiO 3 ferroelectric. In particular, it is shown that
the magnitude of the build-in extrinsic charge at the domain wall and the nanoscale domain size can both promote
rotation of the static polarization vector within the body of adjacent domains. This polarization rotation drives
the domain closer to an orthorhombic state, and the proximity to this ferroelectric-ferroelectric phase transition
is directly responsible for the enhancement of the properties. Our simulations and the theory also suggest that
the same system with nominally overcompensated charged walls may show a negative effective longitudinal
piezoelectric coefficient. The obtained results can be used for quantitative estimates of piezoelectric properties
of domain-engineered crystals.},
added-at = {2021-03-03T08:24:09.000+0100},
author = {Ondrejkovic, P. and Marton, P. and Guennou, M. and Setter, N. and Hlinka, J.},
biburl = {https://www.bibsonomy.org/bibtex/28fcfd609b267d4368c3c58b8fe0037e5/skoerbel},
doi = {10.1103/PhysRevB.88.024114},
interhash = {b56ce438d4600df12a6bba4381f2ac25},
intrahash = {8fcfd609b267d4368c3c58b8fe0037e5},
journal = {Phys. Rev. B},
keywords = {BaTiO3 charged_domain_walls domain_walls phase_field theory},
month = jul,
number = 2,
numpages = {9},
pages = 024114,
publisher = {American Physical Society},
timestamp = {2021-03-03T08:24:09.000+0100},
title = {Piezoelectric properties of twinned ferroelectric perovskites with head-to-head and tail-to-tail domain walls},
url = {https://link.aps.org/doi/10.1103/PhysRevB.88.024114},
volume = 88,
year = 2013
}