| 摘要 |
Materials including alternating magnetic layers and spacer layers for use as a hard magnetic recording layer of a magnetic recording media are disclosed. The spacer layers as well as the magnetic layers are exchange decoupled. The spacer and magnetic layers include additives which are present in grain boundary regions throughout the layers. In a particular embodiment, the magnetic layers comprise Co, the spacer layers comprise Pd, and the additives comprise Cr, Pt, B, Ta, Nb or combinations thereof. In addition to forming grain boundaries that exchange decouple the magnetic and spacer layers, the additives may act as grain refiners.
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