Abstract
Through second harmonic measurements, the ultrasonic nonlinearity parameters of [001]c and [111] c polarized 0.70Pb (Mg1/3 Nb2/3) O3 -0.30 PbTiO3 (PMN-0.3PT) single crystals have been measured as a function of bias electric field. It was found that the nonlinearity parameter increases almost linearly with field at low field but shows a drastic increase near the coercive field. The [111] c polarized single domain crystal has much smaller nonlinearity parameter than that of the [001] c polarized multidomain crystal. Based on effective symmetries of these crystals, we were able to derive the field dependence of several third order elastic constants, which are important parameters for high field applications. © 2010 American Institute of Physics.
| Original language | English |
|---|---|
| Article number | 052905 |
| Journal | Applied Physics Letters |
| Volume | 96 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
Financial support for this work was provided by the National Natural Science Foundation of China under Grant No. 10674066 and State Key Laboratory of Acoustics, and the NIH under Grant No. P41-EB21820.
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