MAGNETIC MEDIA PRODUCING METHOD

摘要

There is disclosed a process for manufacturing a magnetic recording material by first forming a Cr-film on a non-magnetic substrate by the sputtering method, then forming a Co-alloy upper-layer film on the Cr-film and epitaxially growing the Co-alloy film, wherein the Co-alloy film is a film of a Co-alloy containing at least Cr and a negative bias voltage is applied to the substrate during the formation of the Cr-film and/or the Cr-containing Co-alloy film. In this way a magnetic recording material having a high coercive force is produced.