Investigation of ferroelectric order - disorder type compounds with asymmetric double - well potential

Abstract

The Mitsui model for the order-disorder type ferroelectrics is studied within the mean field approximation. The phase diagram of the model is obtained, its dependence on the transverse field is obtained. A scheme of setting the values of the model parameters is proposed; all the dielectric characteristics of Rochelle salt are calculated with the found parameters. Within the Mitsui model we study the physical characteristics of RbHSO4 type crystals; the found values of the model parameters provide a good description of both dielectric and thermodynamic properties of these compounds. Institute for Condensed Matter Physics, 1 Svientsitskii st., 79011, Lviv, Ukraine e-mail: werch@icmp.lviv.ua Lviv commercial academy, 10 Tugan-Baranovski st., 79005. Lviv, Ukraine Lviv Ivan Franko National University, 1 Universytetska st., 79000, Lviv, Ukraine

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Cite this paper

@inproceedings{Levitskii2008InvestigationOF, title={Investigation of ferroelectric order - disorder type compounds with asymmetric double - well potential}, author={R . R . Levitskii and T . M . Verkholyak and I . V . Kutny and I . G . Hil}, year={2008} }