Interlayers for magnetic recording media

摘要

Embodiments of the present invention include a recording medium comprising: a hard magnetic recording layer and an interlayer disposed under the hard magnetic recording layer, wherein the interlayer comprises an upper layer of Ru-based alloy and a lower layer of RuCo or ReCo alloy. Generally for embodiments of the present invention, the lower layer of RuCo or ReCo alloy is formed over a seed layer using a low-pressure sputter process, and the upper layer of Ru-based alloy is formed over the lower layer using a high-pressure sputter process.

主权项

1. A recording medium comprising:
a hard magnetic recording layer; an upper layer of an interlayer disposed under the hard magnetic recording layer, the upper layer comprising a Ru-based alloy; and a lower layer of the interlayer disposed under the upper layer, the lower layer comprising a ReCo alloy; wherein the lower layer of the interlayer comprises Re100-X—CoX, where X is between 20 and 60.