2004 Volume 4 Issue 4-2 Pages 152-155
Wall structure and energy have been simulated for the Domain Wall Displacement Detection (DWDD), and the front process and the rear process under temperature gradient have been considered. For the front process, when the mark length is comparable with the domain wall width in the displacement (D) layer, the domain copied on the D-layer from the memory layer collapses. By making the D-layer thin, the minimum mark length for which the domain wall displacement occurs can be shortened. For the rear process, we confirmed that by inserting the control layer between the D-layer and the switching layer, the mark length with which the ghost signal is suppressed becomes longer. By making the anisotropy energy constant in the D-layer increase, improvement in the DWDD process is expected.
