Importance of a High Shear Coefficient to the Piezoelectric Properties of Domain-Engineered Crystals and Ceramics

Author

Davis, Matthew ; Budimir, Marko ; Damjanovic, Dragan ; Setter, Nava

Author_Institution

Ecole Polytech. Federale de Lausanne, Lausanne

fYear

2006

fDate

July 30 2006-Aug. 3 2006

Firstpage

283

Lastpage

286

Abstract

The importance of a high shear coefficient d₁₅ to the piezoelectric properties of domain-engineered perovskite crystals is discussed. The terms "rotator" and "extender" are introduced to differentiate the contrasting behaviors of 4mm BaTiO₃ and PbTiO₃. In "rotator" ferroelectrics, where d₁₅ is high, polarization rotation is the dominant mechanism of piezoelectric response; in "extender" ferroelectrics d₁₅ is low and the collinear effect dominates. Large shear coefficients can be expected close to ferroelectric-ferroelectric phase transitions; this includes morphotropic phase boundaries. The differing piezoelectric properties of rotator and extender domain-engineered single crystals are discussed.

Keywords

barium compounds; electric domains; ferroelectric ceramics; ferroelectric transitions; lead compounds; piezoelectricity; BaTiO₃; PbTiO₃; ceramics; domain-engineered perovskite crystals; ferroelectric-ferroelectric phase transitions;; morphotropic phase boundaries; piezoelectric properties; polarization; rotator ferroelectrics; shear coefficient; Anisotropic magnetoresistance; Ceramics; Crystalline materials; Crystals; Ferroelectric materials; Laboratories; Piezoelectric effect; Piezoelectric polarization; Temperature; Titanium compounds; Piezoelectric anisotropy; domain engineering;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of ferroelectrics, 2006. isaf '06. 15th ieee international symposium on the

Conference_Location

Sunset Beach, NC

ISSN

1099-4734

Print_ISBN

978-1-4244-1331-7

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2006.4387887

Filename

4387887