DocumentCode :
763878
Title :
Annealing Effects of Co–Cr–Pt–SiO 
Perpendicular Magnetic Recording Media
Perpendicular Magnetic Recording MediaAuthor :
Park, S.H. ; Kim, S.O. ; Oh, H.S. ; Kim, Y.S. ; Hong, D.H. ; Lee, T.D.
Author_Institution :
Dept. of Mater. Sci. & Eng., Korea Adv. Energy Res. Inst., Daejeon
Volume :
42
Issue :
10
fYear :
2006
Firstpage :
2390
Lastpage :
2392
Abstract :
High coercivity (Hc) and magnetic anisotropy constants (Ku) can be achieved by postannealing in Co-Cr-Pt-SiO2 /Ru perpendicular magnetic recording media without grain size growth or interdiffusion. Cr oxide formation is promoted by annealing, especially at the interface of the Ru underlayer and Co-Cr-Pt-SiO2 layer due to oxygen depth profile. Annealing beyond a particular temperature results in grain growth of the Co alloy and enhanced exchange coupling
Keywords :
chromium alloys; cobalt alloys; coercive force; magnetic annealing; perpendicular magnetic anisotropy; perpendicular magnetic recording; platinum alloys; ruthenium; silicon alloys; Co-Cr-Pt-SiO2; Ru; annealing effects; exchange coupling; grain growth; high coercivity constants; magnetic anisotropy constants; oxygen depth profile; perpendicular magnetic recording media; ruthenium underlayer; Annealing; Chromium; Cobalt alloys; Coercive force; Magnetic anisotropy; Magnetic properties; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization; Temperature; Annealing; perpendicular magnetic recording (PMR);
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2006.878693
Filename :
1704309
Link To Document :
