Current-supported domain wall movement to the target spot with a magnetic field

Abstract

Current-driven domain wall (DW) motion in a submicron-size magnetic strip, which consists of Cu/IrMn/NiFe/Cu/NiFe/Cu pseudo-spin-valve with natural defects, was investigated by measuring the giant-magnetoresistance signal. The magnetic DW movement was induced by the injection of a high current density of 4 x 10(7) A/cm(2). It was also found that a DW can be manipulated in more convenient way by the application of both current and magnetic field at the same time. (c) 2006 Elsevier B.V. All rights reserved.