%0 Journal Article
%T Phase transitions in the Mitsui model
%A Yu.I. Dublenych
%J Condensed Matter Physics
%D 2011
%I Institute for Condensed Matter Physics
%X In this paper, phase transitions in the Mitsui model without longitudinal field but with a transverse one are investigated in the mean field approximation. The one-to-one correspondence has been established between this model and the two-sublattice Ising-type model with longitudinal and transverse fields. Phase diagrams and diagrams of existence of the ferroelectric phase are constructed. In the case ¦¸ = 0 (¦¸ is the transverse field), a simple analytical expression for the tricritical temperature and the condition of existence of the tricritical point are obtained. For ¦¸ ¡Ù 0, systems of equations for the tricritical point and for the condition of its existence are written.
%K phase transition
%K ferroelectric phase
%K Mitsui model
%K tricritical point
%U http://dx.doi.org/10.5488/CMP.14.23603