Magnetic and magneto-optical properties of (Co-Bi)/Pt and Co/(Pt-Bi) multilayers

Author

Suzuki, T. ; Iwata, Satoru ; Brandle, H. ; Weller, D.

Author_Institution

Almaden Res. Center, IBM Res. Div., San Jose, CA, USA

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4455

Lastpage

4457

Abstract

Both the magnetization and perpendicular magnetic anisotropy at 300 K decrease with Bi content x in (Co_1-xBi_x)/Pt multilayers, whereas the magnetization increases with x in (Co/Pt_1-xBi_x). The maximum magneto-optical Kerr rotation increases with x up to x=0.12, then decreasing with x for (CoBi/Pt). On the other hand, the rotation decreases with x in (Co/PtBi). The photon energy for the maximum polar Kerr rotation becomes smaller with x for (Co/PtBi), but it remains unchanged for (CoBi/Pt)

Keywords

Kerr magneto-optical effect; bismuth alloys; cobalt; cobalt alloys; ferromagnetic materials; magnetic multilayers; magnetisation; magneto-optical recording; perpendicular magnetic anisotropy; platinum; platinum alloys; (Co-Bi)/Pt multilayers; 300 K; Co-PtBi; Co/(Pt-Bi) multilayers; CoBi-Pt; magnetization; magneto-optical Kerr rotation; magneto-optical properties; maximum polar Kerr rotation; perpendicular magnetic anisotropy; photon energy; Bismuth; Magnetic anisotropy; Magnetic multilayers; Magnetic properties; Magnetization; Magnetooptic effects; Magnetooptic recording; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334118

Filename

334118