Simulation of the (p, T) phase diagram of the temperature-driven metamagnet alpha-FeRh

In: Phase Transitions, Jg. 78 (2005) ; Nr. 1 - 3, S. 209 - 217
Zeitschriftenaufsatz / Fach: Physik
Abstract:
We perform finite-pressure Monte Carlo simulations of an effective spin-analogous model with coupled magnetic and lattice degrees of freedom, which has previously been proposed in order to explain the anomalous temperature driven metamagnetic phase transition in alpha-FeRh. The results are in reasonable agreement with the experimental (p, T) phase diagram. The critical behaviour of the system along the transition lines is analysed in detail.