Related Experiment Video
Updated: Jun 3, 2026

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
Invariant lattice strain and polarization in BaTiO3-CaTiO3 ferroelectric alloys
Desheng Fu1, Mitsuru Itoh, Shin-ya Koshihara
1Division of Global Research Leaders, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu 432-8561, Japan. ddsfu@ipc.shizuoka.ac.jp
Abstract:
We report the lattice strain and polarization of the BaTiO(3)-CaTiO(3) solid solution. We found that the lattice strain evaluated by the tetragonality of the tetragonal phase at room temperature is nearly independent of the composition within the limit of the solid solution. In association with this variation, the saturation polarization remains nearly unchanged. Such invariant lattice strain associated with the ionic displacement in ferroelectrics is considered to be responsible for the nearly compositional independence of the polarization and the observed ferroelectric Curie temperature. Its relatively stable polarization compared with that of pure BaTiO(3) is very interesting for technological applications, such as in ferroelectric memory.
Related Concept Videos
Transformation of Plane Strain
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Trends in Lattice Energy: Ion Size and Charge
Lattice Energies of Ionic Crystals
Three-Dimensional Analysis of Strain
Ferromagnetism

