Title :
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
fDate :
9/1/1996 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
