Abstract
Crystals of (1-x) Pb(A1/3Nb2/3)O3-x PbTiO3 (A = Zn+, Mg2+) were grown by the flux technique. The dielectric and piezoelectric properties as a function of composition and crystal orientation have been evaluated. Both MPB and non-MPB crystals were found to possess high piezoelectric properties. Values of longitudinal electromechanical coupling coefficients (k33)>90%, dielectric constants ranging from 3000 to 5000 with low dielectric loss <1% were observed for rhombohedral crystals. Tetragonal crystals with increased PbTiO3 content exhibited large thickness coupling coefficients (kT) >63% with relatively low dielectric constant (approximately 1000). Ultrahigh values of piezoelectric coefficients (d33) >2000 pC/N were also measured for non-MPB crystals and confirmed by direct E-field strain measurements. These properties are briefly discussed in relation to device performance.
Original language | English (US) |
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Pages | 79-82 |
Number of pages | 4 |
State | Published - 1996 |
Event | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA Duration: Aug 18 1996 → Aug 21 1996 |
Other
Other | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) |
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City | East Brunswick, NJ, USA |
Period | 8/18/96 → 8/21/96 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering