Magnetic recording medium and magnetic storage apparatus
AssigneeShowa Denko K.K.
InventorsHideaki Takahoshi, Daisuke Amiya, Hiroshi Sakai
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Abstract
A magnetic recording medium may include an orientation control layer, a lower recording layer, an intermediate layer, and an upper recording layer that are stacked. The lower recording layer may have a coercivity higher than that of the upper recording layer, and the intermediate layer may include a layer including a magnetic material and having a saturation magnetization of 50 emu/cc or higher. The upper recording layer may include columnar crystals continuous with crystal particles forming the intermediate layer in a direction in which the layers are stacked.
Claims13
A magnetic recording medium comprising:
- a stacked structure including an orientation control layer, a lower recording layer, an intermediate layer, and an upper recording layer that are sequentially stacked,
- wherein the lower recording layer has a coercivity higher than that of the upper recording layer,
- wherein the intermediate layer includes a layer including a magnetic material and having a saturation magnetization of 50 emu/cc or higher, and
- wherein the upper recording layer includes columnar crystals continuous with crystal particles forming the intermediate layer in a direction in which the layers of the stacked structure are sequentially stacked.
Dependencies are inferred from the claim text.