PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND MAGNETIC STORAGE SYSTEMS USING THE SAME
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United States of America Patent
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Issued Date -
Feb 23, 2012
app pub date -
Aug 23, 2010
filing date -
Aug 23, 2010
priority date (Note) -
Abandoned
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Abstract
In one embodiment, a perpendicular magnetic recording medium (PMRM) includes a first interlayer comprising Ru or a Ru alloy, a second interlayer above the first interlayer comprising Ru or a Ru alloy, and a third interlayer formed between the first interlayer and the second interlayer that reduces an average cluster size of the second interlayer. In another embodiment, a PMRM includes a first interlayer comprising Ru or a Ru alloy, a second interlayer above the first interlayer comprising Ru or a Ru alloy, and a third interlayer formed between the first interlayer and the second interlayer that reduces an average cluster size of the second interlayer. The third interlayer has a thickness of between about 1.0 nm and about 3.0 nm and has a structure selected from a group consisting of: BCC, B2, C11b, L21, and D03. Other PMRMs and methods of fabrication are presented as well.
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