Single shot measurement of current-and field-induced domain wall motion in a permalloy nanowire

摘要: In order to obtain full information about the stochastic nature of current-induced domain wall (DW) motion in ferromagnetic nanowires, single shot measurements are necessary. We use a focused magneto-optic Kerr effect (MOKE) technique to capture single DW movements in a 500 nm-wide, {proportional_to}30 nm-thick Ni{sub 80}Fe{sub 20} wire. A DW is prepared at a specified position, as in. By applying fields H