Phase-Transition Induced Domain Evolution and Magnetization Dynamics in FePt/FeRh Bilayers for Efficient Heat-Assisted Magnetic Recording
This study demonstrates that FePt/FeRh bilayers significantly enhance heat-assisted magnetic recording efficiency by leveraging the FeRh phase transition to reduce FePt coercivity through interfacial exchange coupling and improved domain wall mobility, rather than by softening intrinsic anisotropy.