Inter layers for perpendicular recording media

Details Inter layers for perpendicular recording media Inter layers for perpendicular recording media

2007-06-26

2007-06-26

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

Reexamination Certificate

active

10797111

ABSTRACT:
A magnetic recording medium, the order of layers in which is the substrate, the soft underlayer, the seedlayer, the 1stRuCrx-containing interlayer, the 2ndRuCrx-containing interlayer and the magnetic recording layer with preferably a oxides or nitrides-containing magnetic layer comprising grains, is disclosed. High-chromium ruthenium-chromium alloy used as inter layers significantly enhances coercivity and SMNR preferably due to the improved lattice match between RuCr inter layers and CoPt-based magnetic recording layers, and the surface energy of RuCr layers contributes to the performance improvement with the high-chromium addition into Ru inter layers.

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Machine translation of JP 2001-283428, Toshiba Corp, Oct. 2001.

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