Spontaneous polarization and pyroelectric effect in KNbO3
- 1 August 1977
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 48 (8) , 3475-3477
- https://doi.org/10.1063/1.324196
Abstract
The spontaneous polarization Ps of single‐domain orthorhombic KNbO3 has been measured with the Camlibel pulse method. A new value of Ps=0.41±0.02 C/m2, which is about 30% larger than the result obtained in hysteresis measurements, has been observed. The temperature dependence of the pyroelectric coeffficient has been measured using a direct method. The temperature dependence of the spontaneous polarization calculated from these measurements is compared with the results of a Devonshire free‐energy expansion.This publication has 23 references indexed in Scilit:
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