Current-driven output magnetization switching in a magnetic nanowire with a three-terminal Y junction

Abstract

Electrically induced magnetization switching was investigated in a three-terminal magnetic Y junction. Two input wires acted as domain wall (DW) injection sources, one of which was used for electrical gating. This configuration made it possible to detrap a DW that was pinned at the Y junction. The magnetization of the output wire was controlled by current-driven DW motion that was induced by the isolated-gating input wire. The active gating performance of the current-driven DW motion is more effective than that induced by a magnetic field. (C) 2008 American Institute of Physics.