Thermally assisted magnetic recording medium and magnetic recording and reproducing apparatus
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United States of America Patent
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Apr 14, 2015
Grant Date -
Feb 19, 2015
app pub date -
Apr 30, 2013
filing date -
May 1, 2012
priority date (Note) -
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Abstract
A thermally assisted magnetic recording medium (1) includes a substrate (101), an underlayer (3) that is formed above the substrate (101), and a magnetic layer (107) that is formed on the underlayer (3) and contains an alloy having an L10 structure as a main component. The underlayer (3) is formed by continuously laminating a first underlayer (104) having a BCC structure with a lattice constant that is 0.302 to 0.332 nm, a second underlayer (105) that has a NaCl structure including C, and a third underlayer (106) that is composed of MgO.
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