Recording performance of granular-type FePt-MgO perpendicular media

Author

Suzuki, T. ; Zhang, Z. ; Yin, J. ; Singh, A.

Author_Institution

Toyota Technol. Inst., Nagoya, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

877

Lastpage

878

Abstract

In this study, the double-layered disk has a film stack structure of [MgO x nm/FePt y nm]_n /MgO 4 nm/SiO2 4 nm/Fe-Ta-C 200 nm. The disks were fabricated by sputtering onto 2.5-inch glass disc substrate. Magnetic properties were measured by AGFM and P-MOKE and recording performance was studied by spin-stand with ring head designed for 50 Gbsi longitudinal recording.

Keywords

Kerr magneto-optical effect; coercive force; ferromagnetic materials; granular materials; iron alloys; iron compounds; magnesium compounds; magnetic multilayers; magnetic thin films; perpendicular magnetic recording; platinum alloys; silicon compounds; sputter deposition; tantalum compounds; 2.5 inch; 200 nm; 4 nm; AGFM; FePt-MgO; MgO-SiO₂-FeTaC; P-MOKE; SiO₂; double-layered disk; film stack structure; granular-type perpendicular media; recording performance; spin-stand; sputtering; Annealing; Coercive force; Disk recording; Magnetic anisotropy; Magnetic materials; Magnetic recording; Nonhomogeneous media; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Soft magnetic materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463867

Filename

1463867