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

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3393

Lastpage

3395

Abstract

Multilayers composed of 25 bilayers of magnetoplumbite type of barium ferrite (BaM) layers as thin as 120 Å and CoO or Co₃O₄ 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 θ_k 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.280825

Filename

280825