Influence of seedlayer on film microstructure of Co-Cr-Pt longitudinal recording media fabricated on plastic substrates

Author

Kirino, F. ; Inaba, N. ; Futamoto, M. ; Koiso, N. ; Maro, T.

Author_Institution

Tsukuba Res. Lab., Hitachi Maxell Ltd., Ibaraki, Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2348

Lastpage

2350

Abstract

Influences of seedlayer on surface and cross-sectional film structures are investigated for the magnetic recording media fabricated on a plastic disk substrate. An irregular film growth is observed when a recording medium consisting of C/Co-Cr-Pt/Cr-Ti multilayer is deposited directly on an amorphous polyolefin substrate. Zr or Ti seedlayer with HCP crystal structure is found to be useful in improving the film microstructure and is comparable to that formed on a glass substrate. The recording media with Zr or Ti seedlayer have desirable microstructure and surface flatness which are necessary for high density magnetic recording applications

Keywords

carbon; chromium alloys; cobalt alloys; crystal microstructure; magnetic multilayers; magnetic recording; platinum alloys; sputtered coatings; surface structure; titanium alloys; C-CoCrPt-CrTi; amorphous polyolefin substrate; cross-sectional film structures; disk substrate; film microstructure; high density magnetic recording; irregular film growth; longitudinal recording media; magnetic recording media; multilayer; plastic substrates; seedlayer influence; surface flatness; surface structures; Amorphous materials; Crystal microstructure; Disk recording; Glass; Magnetic films; Magnetic multilayers; Magnetic recording; Plastic films; Substrates; Zirconium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908425

Filename

908425