Precise measurements of the landau-devonshire coefficients of KDP
- 1 January 1977
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 17 (1) , 325-327
- https://doi.org/10.1080/00150197708236730
Abstract
The expansion coefficients α, β and γ of the free energy [image omitted] have been determined from E-P relation in a quasi-static condition. Precautions were taken to maintain a stress-free condition. The temperature control accuracy was better than ±1 mdeg. The expansion up to the sixth power describes well the first-order transition. The numerical values were [image omitted]Keywords
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