Magnetic anisotropy of Co/Pt/FeMn multilayers grown on polystyrene nanospheres

► The multilayers investigated in this work were grown at room temperature by dc sputtering. ► The FMR data were taken at room temperature with X-band microwave system (9.6 GHz). ► We report distinct magnetic phases in the multilayer's. ► The magnetic phase depends on the structure and is oriented at a specific direction.