Title :
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
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;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463867
