Reduced spacing recording apparatus

摘要

Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overcoats with components and compositions comprising magnetic materials. Other aspects relate to magnetic seed layers deposited within a recording medium. Preferably, these aspects, embodied as methods, systems and/or components thereof reduce effective magnetic spacing without sacrificing physical spacing.

主权项

1. An apparatus comprising:
a soft magnetic underlayer (SUL) on a substrate; a magnetic recording layer over the SUL; a ferromagnetic media overcoat on top of the magnetic recording layer; and a ferromagnetic interlayer between the SUL and the magnetic recording layer, wherein the ferromagnetic interlayer has a saturation magnetization (Ms) of about 100-1000 emu/cc.