Medium noise property of sputter textured media on carbon substrate

Author

Kobayashi, I. ; Uchida, K. ; Ohashi, K. ; Yamaguchi, K. ; Sane, Y. ; Ishii, T.

Author_Institution

Recording & Imaging Sci. Lab., Kao Corp., Haga, Japan

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3572

Lastpage

3574

Abstract

The influence of sputter texture on the medium noise is discussed. Texture E (surface roughness, Ra=6.8 (nm)) and texture J (Ra=16.1 (nm)) are prepared as sputter textured samples. Both textured and non-textured samples are fabricated with DC magnetron sputtering method. Film structure, static magnetic properties and electromagnetic performance are measured, and magnetic domain is also observed. The medium noise is found to be related to the particle noise, the magnetic interaction as well as the size of the micro-bump of sputter texture

Keywords

carbon; magnetic domains; magnetic recording noise; magnetic thin films; sputtered coatings; surface texture; C; DC magnetron sputtering; carbon substrate; electromagnetic performance; film structure; magnetic domains; magnetic interactions; micro-bumps; noise; particle noise; sputter textured medium; static magnetic properties; surface roughness; Electromagnetic measurements; Magnetic domains; Magnetic films; Magnetic noise; Magnetic properties; Rough surfaces; Sputtering; Substrates; Surface roughness; Surface texture;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.538693

Filename

538693