Synthesis of hard/soft magnetically exchange-coupled heterostructures is one promising way to design energy-efficient rare-earth-free artificial magnetic materials for application as permanent magnets and in spintronics. As a model system, we experimentally investigate MnGa/FeCo bilayers and simulate their physical behavior in a combined density functional theory and micromagnetic approach. Using highquality L10 -Mn1.5 Ga thin films with bulklike magnetic properties, we ... Read more