Abstract
The ferroelectric and piezoelectric properties of 2000 angstrom thick chemical solution deposited Pb(ZrxTi1-x)O3 (PZT) thin films were investigated. Several Zr/Ti ratios were studied: 30/70, 50/50 and 65/35, which correspond to tetragonal, near-morphotropic, and rhombohedral symmetries. In all samples, a {111}-texture is predominant. Longitudinal piezoelectric coefficients and their dc field dependence were measured using the contact AFM method. The expected trend of a maximum piezoelectric coefficient at or near to the MPB was not observed. The composition dependence was small, with the maximum d33 occurring in the tetragonal material. To explain the results, crystallographic texture and film thickness effects are suggested. Using a modified phenomenological approach, derived electrostrictive coefficients, and experimental data, d33 values were calculated. Qualitative agreement was observed between the measured and calculated coefficients. Justifications of modifications to the calculations are discussed.
Original language | English |
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Pages (from-to) | 139-146 |
Number of pages | 8 |
Journal | Integrated Ferroelectrics |
Volume | 24 |
Issue number | 1 |
DOIs | |
State | Published - 1999 |
Externally published | Yes |
Event | The 11th International Symposium on Integrated Ferroelectrics (ISIF99) - Colorado Springs, CO, USA Duration: Mar 7 1999 → Mar 10 1999 |