Predicting morphotropic phase boundary locations and transition temperatures in Pb- and Bi-based perovskite solid solutions from crystal chemical data and first-principles calculations
- 1 November 2005
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 98 (9), 094111
- https://doi.org/10.1063/1.2128049
Abstract
Using data obtained from first-principles calculations, we show that the position of the morphotropic phase boundary (MPB) and transition temperature at MPB in ferroelectric perovskite solutions can be predicted with quantitative accuracy from the properties of the constituent cations. We find that the mole fraction of at MPB in , , and exhibits a linear dependence on the ionic size (tolerance factor) and the ionic displacements of the cations as found by density-functional-theory calculations. This dependence is due to competition between the local repulsion and -cation displacement alignment interactions. Inclusion of first-principles displacement data also allows accurate prediction of transition temperatures at the MPB. The obtained structure-property correlations are used to predict morphotropic phase boundaries and transition temperatures in as yet unsynthesized solid solutions.
Keywords
This publication has 40 references indexed in Scilit:
- Predicting the position of the morphotropic phase boundary in high temperature PbTiO3-Bi(B′B″)O3 based dielectric ceramicsJournal of Applied Physics, 2004
- Investigation of a high Tc piezoelectric system: (1−x)Bi(Mg1/2Ti1/2)O3–(x)PbTiO3Journal of Applied Physics, 2004
- Relationship between local structure and phase transitions of a disordered solid solutionNature, 2002
- Structure and high-piezoelectricity in lead oxide solid solutionsCurrent Opinion in Solid State and Materials Science, 2002
- Crystal chemistry and domain structure of relaxor piezocrystalsCurrent Opinion in Solid State and Materials Science, 2002
- New High Temperature Morphotropic Phase Boundary Piezoelectrics Based on Bi(Me)O3–PbTiO3 CeramicsJapanese Journal of Applied Physics, 2001
- Finite-Temperature Properties ofAlloys from First PrinciplesPhysical Review Letters, 2000
- Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystalsJournal of Applied Physics, 1997
- Structure and energetics of antiferroelectricPhysical Review B, 1995
- Origin of ferroelectricity in perovskite oxidesNature, 1992