| 摘要 |
A magnetic recording medium comprises a non-magnetic substrate (21), a magnetic recording layer (22) formed on the non-magnetic substrate (21), and a lubricant layer (23) containing carbon as a major component and formed on the magnetic recording layer (22). At least one element selected from a group consisting of hydrogen and a halogen is bonded to the carbon, as the major component of the lubricant layer (23), in a surface region of the lubricant layer (23). In the formation of the lubricant layer (23), initially only an inert gas is introduced as an atmospheric gas around a carbon target at the begining of sputtering, so that the carbon target is sputtered by cations of the inert gas. Thereafter, a gas containing at least one of hydrogen and a halogen is added to sputter the carbon target. Thus, a carbon-hydrogen atomic bond (C-H bond) and/or a carbon- halogen atomic bond (C-X bond; X is a halogen element) are formed on the surface region of the lubricant layer (23). |
