Thin film disks with transient metal underlayers

Author

Mirzamaani, Mohammad ; Jahnes, Christopher V. ; Russak, Michael A.

Author_Institution

IBM, San Jose, CA, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

3090

Lastpage

3092

Abstract

A novel technique for fabricating thin-film disk media with controlled surface roughness and bulk magnetic properties is described. This technique uses a low-melting point metal as an underlayer which is deposited onto a nonwetting substrate to form isolated spherical features. The magnetic layer deposited onto this underlayer is associated with a fine and controllable surface roughness which is desirable for tribological performance. The magnetic and mechanical performances of thin-film disks fabricated with this technique are presented

Keywords

hard discs; magnetic properties of substances; magnetic thin film devices; sputter deposition; sputtered coatings; surface topography; Ga-CoPtCr-C; bulk magnetic properties; controlled surface roughness; low-melting point metal; magnetic layer; mechanical performances; nonwetting substrate; thin-film disk media; transient metal underlayers; Atomic force microscopy; Magnetic films; Magnetic heads; Magnetic properties; Rough surfaces; Scanning electron microscopy; Substrates; Surface roughness; Transistors; Transmission electron microscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179722

Filename

179722