Current-induced domain wall motion in a nanowire with perpendicular   magnetic anisotropy
  We study theoretically the current-induced magnetic domain wall motion in a metallic nanowire with perpendicular magnetic anisotropy. The anisotropy can reduce the critical current density of the domain wall motion. We explain the reduction mechanism and identify the maximal reduction conditions. This result facilitates both fundamental studies and device applications of the current- induced domain wall motion. 
Soon-Wook Jung, Woojin Kim, Taek-Dong Lee, Kyung-Jin Lee, Hyun-Woo Lee