Field-controlled domain wall pinning-depinning effects in a ferromagnetic nanowire-nanoislands system

摘要

We present the results of micromagnetic modeling and experimental investigations of field-driven domain wall pinning-depinning effects in a planar system consisting of a ferromagnetic nanowire and two ferromagnetic single-domain nanoislands (NIs). It was demonstrated that the magnitude of the depinning field strongly depends on the spatial configuration of magnetic moments in the NI subsystem. An algorithm for the external magnetic field commutation and independent switching of the NI moments that permits the realization of logical operations is discussed.