Abstract
The areal density of magnetic storage needs to be increase so to meet the increasing demand for mass data storage. The application of the thermal fly-height control sliders allows a flying height lower than 3nm. State of art, the thickness of carbon overcoat thickness and lubricant are 1.8nm and 0.8nm, respectively. Further decrease in carbon thickness is difficult due to galvanic corrosion through exposure to air. We propose a way to decrease the head magnetic spacing. The PFPE lubricant will applied onto the magnetic head air bearing surface instead of the magnetic media. Reduction of the carbon over coat film thickness of the magnetic media is possible since nitration is not needed. Experiments were conducted to demonstrate the feasibility of this idea. The use graphene on magnetic hard disk is also disused.
