A theory of morphotropic phase boundary in solid-solution systems of perovskite-type oxide ferroelectrics

Authors
Ishibashi, Y Iwata, M
Citation
Y. Ishibashi et M. Iwata, A theory of morphotropic phase boundary in solid-solution systems of perovskite-type oxide ferroelectrics, JPN J A P 1, 38(2A), 1999, pp. 800-804
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
38
Issue
2A
Year of publication
1999
Pages
800 - 804
Database
ISI
Abstract
The origin of the appearance of the morphotropic phase boundary in perovski te-type oxide solid solution systems is clarified on the basis of a Landau- type free-energy function expressed in terms of polarization and strain com ponents. The dielectric susceptibilities and piezoelectric constants are sh own to increase in the vicinity of the morphotropic phase boundary.