6533b86cfe1ef96bd12c890d

RESEARCH PRODUCT

Elastic and piezoelectric properties of BaTiO3 at room temperature

A. KhalalD. KhatibB. Jannot

subject

Materials scienceCondensed matter physicsPhononCondensed Matter PhysicsPiezoelectricityElectronic Optical and Magnetic MaterialsIonBrillouin zoneCondensed Matter::Materials Sciencechemistry.chemical_compoundchemistryPolarizabilityBarium titanateCoulombElectrical and Electronic EngineeringAxial symmetry

description

Abstract We have calculated the phonon dispersion curves of barium titanate (BaTiO 3 ) at room temperature. A lattice dynamical formalism using the shell model is used. This microscopic model includes the short-range interactions of axially symmetric type and the long-range Coulomb interactions and taking into account the electronic polarizability of constituent ions. Zone center phonon and a few phonons in the first Brillouin zone are used for fitting. The values of relevant parameters are critically analyzed. A calculation of the elastic and piezoelectric properties is presented and compared with the available experimental data.

yearjournalcountryeditionlanguage
1999-11-01Physica B: Condensed Matter
https://doi.org/10.1016/s0921-4526(99)00202-1