Nanocryalline structured co-based alloy intermediate layer (IL) replacing ru layer in perpendicular magnetic recording media for hard disk drive

摘要

A disk for a hard disk drive. The disk includes a first magnetic layer and a second magnetic layer. An intermediate layer consisting of cobalt and titanium is located between the first and second intermediate layers. The intermediate layer creates a finer grain size and larger crystalline anisotropy in the second magnetic layer, characteristics that are desirable when used with a perpendicular recording head.