Short-range-induced critical phenomena in the Landau–Ginzburg model

Abstract

Within the framework of the Landau–Ginzburg model of phase transitions, the type of physical behaviour that results from the sign reversal of the coefficient owing to inhomogeneities is investigated. As a result, a number of interesting phase-transition sequences are obtained. Some such sequences have been observed in metamagnets. These effects are interpreted as induced by short-range interactions.