Perpendicular magnetic anisotropy and magnetic domain structure were studied in epitaxial [Co(tCo)/Pt(10 Å )]30 ( and 10 Å) multilayers prepared on Al2O3(1 1 -2 0) substrate via Mo or Pt seed layer. The best perpendicular magnetic effect occurred for tCo∼3 Å. At remnant state the domain size tends to increase as tCo decreases, and the domain structure depends strongly on the seed layer. For [Co(3 Å )/Pt(10 Å)]30 multilayers grown on gold grid made hole arrays, the polar coercivity inside the holes is different from those on the gold land and unpatterned area.
關聯:
Journal of Magnetism and Magnetic Materials, 209(1-3): 90-94
