| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium capable of making a recording layer thin in thickness, thereby being made high in recording density and to provide a magnetic storage apparatus. SOLUTION: The magnetic recording medium has an underlayer 11 comprising Cr or a Cr alloy and a recording layer 12 formed on the underlayer 11 and the recording layer 12 is formed by providing a RuB alloy layer 14 between first and second magnetic layers 13 and 15. The magnetic layer 13 comprises CoCr or a CoCr alloy, the second magnetic layer 15 comprises CoCrPt or a CoCrPt alloy and the first and the second magnetic layers 13 and 15 are anti-ferromagnetically exchange coupled via the RuB alloy layer 14. The RuB alloy layer 14 comprises RuB or a RuB alloy consisting essentially of RuB having an hcp structure, is epitaxially grown on the surface of the first magnetic layer 13 and epitaxially grows the second magnetic layer 15. COPYRIGHT: (C)2007,JPO&INPIT
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