Title :
Magneto-optical characteristics of BaM ferrite/Co-oxide multilayered films
Author :
Naoe, Masahiko ; Nakagawa, Shigeki
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
Multilayers composed of 25 bilayers of magnetoplumbite type of barium ferrite (BaM) layers as thin as 120 Å and CoO or Co3 O4 layers on ZnO/SiO2/Si substrates were prepared by vacuum-arc evaporation, X-ray diffraction indicated these multilayers possessed clear periodic structure with sharp and flat interfaces. Mossbauer spectroscopy indicated strong magnetic interactions among the iron and cobalt ions through the interfaces. The apparent orientation of magnetic spins in the BaM/CoO multilayer was parallel to the layer planes. Multilayers exhibited a magnetic spin orientation which was oblique to the layer planes, a coercivity H c of 2.0 kOe and Kerr rotation angle θk of 10 min
Keywords :
Kerr magneto-optical effect; Mossbauer effect; X-ray diffraction examination of materials; barium compounds; cobalt compounds; coercive force; ferrites; magnetic multilayers; vacuum deposited coatings; BaFe12O19-Co3O4 multilayered films; Co ions; Fe ions; Kerr rotation angle; Mossbauer spectroscopy; X-ray diffraction; ZnO-SiO2-Si substrates; coercivity; flat interfaces; layer planes; magnetic interactions; magnetic spin orientation; magneto-optical characteristics; oblique; periodic structure; sharp interfaces; vacuum-arc evaporation; Barium; Cobalt; Coercive force; Ferrites; Iron; Magnetic multilayers; Periodic structures; Spectroscopy; X-ray diffraction; Zinc oxide;
Journal_Title :
Magnetics, IEEE Transactions on
