High domain wall velocities induced by current in ultrathin Pt / Co / AlOx wires with perpendicular magnetic anisotropy

  title={High domain wall velocities induced by current in ultrathin Pt / Co / AlOx wires with perpendicular magnetic anisotropy},
  author={Thomas A. Moore and Ioan Mihai Miron and Guillaume Serret and Bernard Rodmacq and Alain Schuhl and Sergio Pizzini}
Current-induced domain wall (DW) displacements in an array of ultra-thin Pt/Co/AlOx wires with perpendicular magnetic anisotropy have been directly observed by wide field Kerr microscopy. DWs in all wires in the array were driven simultaneously and their displacement on the micrometer-scale was controlled by the current pulse amplitude and duration. At the lower current densities where DW displacements were observed (j ≤ 1.5 ×10 12 A/m 2), the DW motion obeys a creep law. At higher current… CONTINUE READING
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