Features of the Phase Transition in a Thin Ferroelastic Rod

Аннотация

It is shown in terms of the phenomenological Landau theory of second-order phase transitions that a phase transition to a nonuniform domain-like phase is possible in a thin ferroelastic rod. The wave vector of the nonuniform structure is determined and the conditions for the existence of the latter are established, depending on the geometric dimensions of the ferroelastic rod, its elastic properties, and the properties of the surface.