Domain walls in magnetic nanowires for digital logic and ultrahigh density data storage

Abstract

Nanometre scale planar magnetic nanowires can exhibit a special magnetic property known as domain wall conduit behaviour in which domain walls can be transmitted along the nanowire by the application of weak magnetic fields or electrical currents. This opens up the possibility of integrated circuits containing complex networks of nanowires in which information is carried, stored and processed by domain walls flowing along nanowire conduits. In this talk I show a complete Boolean logic system implemented using domain walls in nanowires and describe the outlook for ultrahigh density solid state data storage based on this approach.