Field-coupled computing: Investigating the properties of ferromagnetic nanodots

► Focused ion beam irradiation on Co/Pt films is utilized to pattern ferromagnetic nanodots and engineer their coercivity. ► Experimental results on Co/Pt irradiation are mapped to micro-magnetic simulations. ► The read-out ability and thermal stability of 250 nm nanodots is verified by Extraordinary Hall-Effect measurements. ► Single-domain behavior, the coercivity and the switching field distribution are extracted from the hysteresis loops. ► Ferromagnetic Co/Pt dots fulfill the demands of field-coupled magnetic logic devices.