Low noise Co/Pd multilayer media for perpendicular magnetic recording

Author

Wu, Lianjun ; Honda, Naoki ; Ouchi, Kazuhiro

Author_Institution

Akita Res. Inst. of Adv. Technol., Japan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2775

Lastpage

2777

Abstract

Read-write tests and magnetic force microscopy (MFM) observations have been performed for Co/Pd multilayer perpendicular magnetic recording media. For a Co/Pd multilayer medium with a nucleation field (H_n) of~1.5 kOe and a small slope at coercivity (Hc), no reversed magnetic domains between the transitions were observed and a low medium noise was also obtained. Moreover, a negligible time decay in magnetization was detected at the remanent state as well as in signals at both low and high recording densities

Keywords

cobalt; coercive force; magnetic domains; magnetic force microscopy; magnetic multilayers; magnetic recording noise; magnetisation reversal; nucleation; palladium; perpendicular magnetic recording; remanence; Co-Pd; Co/Pd multilayer; coercivity; magnetic domain reversal; magnetic force microscopy; magnetic transition; magnetization time decay; noise; nucleation field; perpendicular magnetic recording; read-write testing; remanence; Coercive force; Magnetic domains; Magnetic force microscopy; Magnetic forces; Magnetic multilayers; Magnetic noise; Magnetization; Performance evaluation; Perpendicular magnetic recording; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800982

Filename

800982