Magnetic recording medium, a method of manufacturing the same, and a magnetic storage device using the magnetic recording medium

The method of manufacturing a magnetic recording medium including a nonmagnetic substrate made of a polymer resin;

• an adhesive layer on the nonmagnetic substrate:
• a nonmagnetic undercoating layer above the adhesive layer;
• a magnetic layer above the nonmagnetic undercoating layer;
• a protection layer above the magnetic layer;
• and a liquid lubricant layer on the protection layer, the method comprising the steps of:
• irradiating a surface of the nonmagnetic substrate with plasma or ultraviolet ray so that carbony group concentration formed in the surface of the nonmagnetic substrate measured by X-ray photoelectron spectroscopic analysis is limited to 0.1 at. % to 30 at. % after the plasma or ultraviolet ray irradiatin to improve an adhesion characteristic thereof;
• and lower the B/A ratio of the adhesive layer, as measured by the Raman spectroscopic analysis, to 3 or higher;
• forming a carbon film as the adhesive layer on the nonmagnetic substrate;
• forming the nonmagnetic undercoating layer above the adhesive layer;
• forming the magnetic layer above the nonmagnetic undercoating layer;
• forming the protection layer above the magnetic layer;
• and
• forming the liquid lubricant layer on the protection layer.