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US 2007/0184307 A1Published application
Perpendicular magnetic recording media including soft magnetic underlayer with diffusion barrier layer
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-Cheol Lee, Seong-yong Yoon, Hoon-sang Oh, Seul-ki Kim
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Abstract
Provided are perpendicular magnetic recording media including a soft magnetic underlayer with a diffusion barrier layer. The soft magnetic underlayer includes an underlayer, a diffusion barrier layer, and an AFM layer, and a soft magnetic layer.
Claims13
A perpendicular magnetic recording medium comprising a magnetic recording layer, a soft magnetic underlayer, and a substrate, wherein the soft magnetic underlayer comprises
- a layer formed of a soft magnetic material (“soft magnetic layer”);
- an anti-ferromagnetic (“AMF”) layer;
- an underlayer formed of a transition metal or a transition metal alloy (“transition metal underlayer”);
- and
- a layer (“barrier layer”) formed of a non-magnetic, non-transition metal material, which is interposed between the AMF layer and the transition metal underlayer.
2 more elements
Dependencies are inferred from the claim text.