Proton order-disorder in KH2PO4-type ferroelectrics: Slater theory and ising model in a transverse tunneling field
- 1 March 1987
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 72 (1), 193-227
- https://doi.org/10.1080/00150198708017947
Abstract
Recent developments in the theory of phase transitions in KH2PO4-type crystals are reviewed together with some relevant experiments. The nature of the isotope effect in the static and dynamic properties of these systems on replacing hydrogen by deuterium is discussed. Expressions for the static and dynamic properties derived by four-cluster analysis are compared with those found from a mean field treatment of the Ising model.Keywords
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