STRUCTURAL AND MAGNETIC CHARACTERISTICS OF BAFE12O19 ZNO MULTILAYERS BY ARC-DISCHARGE EVAPORATION/

Since vacuum-arc evaporation method was useful for preparing oxide fil ms with high quality at moderate deposition rate, this was applied to prepare BaFe12O19/ZnO multilayers with sharp periodic structure. The f ilm consisits of 25 bilayers composed of 120 A BaFe12O19 and 12 angstr om ZnO layers and showed excellent orientation of c-axis in crystallit es normal to layer plane. Therefore, they revealed an apparent perpend icular magnetic anisotropy and exhibited moderately large saturation m agnetization and properly high coercivity applicable for perpendicular recording disks. This seemed to originate from the crystalline anisot ropy along the c-axis of BaFe12O19 crystallites. Orientation of c-axis normal to film plane might be caused by the c-axis orientation of cry stallites in ZnO layers.