Tentative model for the incommensurate and ferroelectric phases in Pb2 CoWO6
- 1 March 1988
- journal article
- incommensurate phases-and-glasses
- Published by Taylor & Francis in Ferroelectrics
- Vol. 79 (1) , 295-298
- https://doi.org/10.1080/00150198808229453
Abstract
The sequence of cubic, incommensurate and ferroelectric phases found in Pb2 CoWO6 is described in the framework of the Landau theory. The model, which involves two different order-parameters, accounts for the first-order character of the transitions, the reentrant behaviour of the incommensurate phase and its coexistence with the ferroelectric phase.Keywords
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