Magneto-optical recording on CoPtRe alloy films as a novel material

Author

Takeda, Yoshihiko ; Umezawa, Tomokazu ; Chiba, Kiyoshi ; Shoji, Hiroki ; Takahashi, Migaku

Author_Institution

Nat. Res. Inst. for Metals, Ibaraki, Japan

Volume

35

Issue

4

fYear

1999

fDate

7/1/1999 12:00:00 AM

Firstpage

2166

Lastpage

2171

Abstract

Magneto-optical (MO) disks using CoPtRe ternary alloy films have been investigated as a novel recording material for a blue laser recording. For various types of disk structure, the Kerr rotation, the Kerr ellipticity, and the figure of merit were calculated and an optimum structure was estimated. Magneto-optical recordings were made on a CoPtRe MO disk at wavelengths of 830 and 530 nm. The recording properties were almost equivalent to those for Co/Pt multilayers

Keywords

Kerr magneto-optical effect; cobalt alloys; magnetic disc storage; magnetic thin films; magneto-optical recording; platinum alloys; rhenium alloys; 530 nm; 830 nm; CoPtRe; CoPtRe alloy films; CoPtRe ternary alloy films; Kerr ellipticity; Kerr rotation; blue laser recording; figure of merit; magneto-optical disks; magneto-optical recording; optimum structure; Disk recording; Magnetic films; Magnetic materials; Magnetic recording; Magnetooptic effects; Magnetooptic recording; Optical films; Optical materials; Perpendicular magnetic recording; Video recording;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.774189

Filename

774189