论文信息 - Recording performance of granular-type FePt-MgO perpendicular media

Recording performance of granular-type FePt-MgO perpendicular media

In this study, the double-layered disk has a film stack structure of [MgO x nm/FePt y nm]/sub 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.

T. Suzuki | J. Yin | Z. Zhang | A. Singh

[1] Takao Suzuki,et al. High Density Perpendicular Magnetic Recording Media of Granular-type FePt/MgO/Fe-Ta-C double-layers , 2004 .

[2] S. Liou,et al. Fabrication of nonepitaxially grown double-layered FePt:C/FeCoNi thin films for perpendicular recording , 2003 .

[3] Takenobu Suzuki,et al. FePt (001) texture development on an Fe–Ta–C magnetic soft underlayer with SiO2/MgO as an intermediate layer , 2003 .

[4] Y. Liu,et al. Perpendicular systems above 100 Gbit/In/sup 2/ density , 2000 .

[5] A. Kikukawa,et al. Noise characteristics of double-layered perpendicular media using novel soft magnetic underlayer materials , 2000 .

[6] S. Charap,et al. Thermal stability of recorded information at high densities , 1996 .

[7] M. Sharrock,et al. Kinetic effects in coercivity measurements , 1981 .

[8] Margaret Evans Best,et al. High K/sub u/ materials approach to 100 Gbits/in/sup 2/ , 2000 .