Contributions to the piezoelectric effect in ferroelectric single crystals and ceramics

The piezoelectric effect in ferroelectric single crystals and ceramics is investigated considering intrinsic (lattice), and extrinsic (originating mainly from displacement of domain walls) contributions. The focus of the study of intrinsic properties is on piezoelectric anisotropy, which was examined using the Landau-Ginsburg-Devonshire phenomenological theory. It is shown that the enhanced piezoelectric response along nonpolar directions, observed in many perovskite systems, is a consequence of the flattening of the Gibbs free energy profile. This flattening is common for temperature-, composition-, and external field-induced enhancement of the piezoelectric properties along nonpolar axes. A brief review of recent advances in understanding the origins of the piezoelectric nonlinearity, hysteresis, and frequency dispersion is also given.


Published in:
Journal of the American Ceramic Society, 88, 10, 2663-2676
Year:
2005
ISSN:
0002-7820
Keywords:
Note:
Damjanovic, D Ecole Polytech Fed Lausanne, Mat Sci & Engn Inst, Ceram Lab, CH-1015 Lausanne, Switzerland Ecole Polytech Fed Lausanne, Mat Sci & Engn Inst, Ceram Lab, CH-1015 Lausanne, Switzerland
964HD
Times Cited:0
Cited References Count:105
Other identifiers:
Laboratories:




 Record created 2006-08-21, last modified 2018-03-17


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