An unusual pyroelectric response
Abstract
The ferroelectric and pyroelectric properties of Li 0.03Na 0.97NbO 3 crystals have been studied in the temperature range from 300 to 20 K. A large jump in the spontaneous polarization has been observed which appears at about 180 K on cooling and at about 260 K on heating. In the temperature ranges in which the spontaneous polarization jumps, the pyroelectric time response changes its polarity following a temperature variation. This unusual pyroelectric behaviour is attributed to the coexistence of two phases in the process of phase transition.
- Publication:
-
Solid State Communications
- Pub Date:
- September 1988
- DOI:
- 10.1016/0038-1098(88)91086-1
- Bibcode:
- 1988SSCom..67.1215Z