Abstract
BiScO3-PbTiO3 single crystals were reported to possess high piezoelectric coefficient of 1200 pC/N and Curie temperature of >400°C, exhibiting excellent thermal stability of properties up to 350°C. However, the origin of the thermal stability is yet unclear. In this research, high resolution synchrotron-based technique was used to study the temperature driven structural evolution in BiScO3-PbTiO3 system, where two competing symmetries and local distortion were observed, accounting for the high piezoelectric activity. A strong correlation between thermal stability of structure and temperature-dependent properties was established, which will benefit the design of ferroelectric materials with broad temperature usage range.
| Original language | English (US) |
|---|---|
| Article number | 232901 |
| Journal | Applied Physics Letters |
| Volume | 106 |
| Issue number | 23 |
| DOIs | |
| State | Published - Jun 8 2015 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
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Kong, L., Liu, G., Zhang, S., & Yang, W. (2015). Origin of the enhanced piezoelectric thermal stability in BiScO3-PbTiO3 single crystals. Applied Physics Letters, 106(23), [232901]. https://doi.org/10.1063/1.4922345