期刊
APPLIED PHYSICS LETTERS
卷 93, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3062855
关键词
aluminium compounds; cobalt; Kerr magneto-optical effect; magnetic anisotropy; magnetic domain walls; platinum
资金
- Nanofab/CNRS Institut Neel
- Dynawall [ANR-07-NANO-034]
Current-induced domain wall (DW) displacements in an array of ultrathin 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 <= 1.5x10(12) A/m(2)), the DW motion obeys a creep law. At higher current density (j=1.8x10(12) A/m(2)), zero-field average DW velocities up to 130 +/- 10 m/s were recorded.
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