MAGNETIC RECORDING MEDIUM COMPRISING MULTILAYERED CARBON-CONTAINING PROTECTIVE OVERCOATS

摘要

A magnetic recording medium is provided with multilayered carbon-containing protective overcoats having different surface polarities and electrical conductivities, thereby enabling optimum performance to be tailored for different drive programs. Embodiments include a first protective overcoat comprising hydrogenated carbon and a second protective overcoat comprising graphitic carbon or amophous carbon nitride.