Room temperature magnetic properties of quenched-disordered FeAl alloys: A simulational study

Abstract

We present a Monte Carlo study of the room temperature magnetic properties of quenched-disordered Fe1-qAlq alloys with 0≤q≤0.6. Simulations were performed using a random site-diluted classical Heisenberg model with nearest neighbor interactions, and using Metropolis dynamics. Results for the Al concentration of the magnetization and susceptibility predict the occurrence of a critical concentration qc at around 40 at. % Al, at which a transition from a ferromagnetic state (q