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To achieve a 1 Tb/in2 system, diamond-like carbon (DLC) on head and disk have to meet the criteria of corrosion- and wear-resistance at thicknesses of less than 2 nm. This paper will assess the performance of head and disk overcoat for a 1 Tb/in2 system and beyond, with focus on the influence of DLC forming technologies, thickness, and substrate materials. To evaluate DLC film, sp3 fraction was measured...
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