Title :
Deposition of paramagnetic Co4Cr2 seed layer for ferromagnetic Co5Cr1 recording layer in high density perpendicular media
Author :
Sato, Atsushi ; Hatekeyama, M. ; Nakagawa, Shigeki ; Naoe, Masahiko
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
The Co4Cr2 film was investigated as a seed layer and the Co5Cr1 film was deposited as a recording layer on it. Magnetic characteristics and c axis orientation were improved by setting the substrate temperature of 80°C and 300°C during deposition of the seed layer and recording one, respectively. It is expected that increase of squareness ratio improve the reproduced output for the read/write characteristics. This deposition process of the Co4Cr2 layer is effective to develop high density perpendicular magnetic recording media
Keywords :
chromium alloys; cobalt alloys; magnetic thin films; perpendicular magnetic recording; sputtered coatings; 300 C; 80 C; Co5Cr1-Co4Cr2; bilayered film; c-axis orientation; ferromagnetic Co5Cr1 recording layer; high density perpendicular magnetic recording; magnetic properties; paramagnetic Co4Cr2 seed layer; read/write characteristics; sputter deposition; squareness ratio; substrate temperature; Chromium; Coercive force; Human computer interaction; Magnetic films; Paramagnetic materials; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Semiconductor films; Substrates; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
