Pressure-induced magnetic transitions of iron and iron alloys

Abstract

The high-pressure behaviors of pure iron and iron alloys have been investigated by both high-pressure experiments and first-principle calculations. In the case of pure iron, the magnetic transition from antiferromagnetic to non-magnetic state was confirmed at 60 GPa. Iron oxide and iron sulfide also showed the magnetic transitions at high pressures. The transition pressure of iron oxide was higher than that of pure iron. The magnetic transition of iron sulfide was accompanied by the structural phase transition.