| 摘要 |
<p>A magnetic recording medium capable of restricting the effects of thermal agitation by simultaneously reducing an average grain size of magnetic crystal grains constituting a ferromagnetic metal film and their standard deviation without changing the film thickness of a metal substrate layer and the film thickness of a ferromagnetic metal layer forming a recording layer, a production method therefor, and a magnetic recording device. The magnetic recording medium comprises a ferromagnetic metal layer consisting of a cobalt base alloy formed on a base material via a metal substrate layer mainly consisting of chromium, characterized in that a seed layer containing at least tungsten is provided between the base material and the metal substrate layer and the seed layer is a island-form film. The above structure requires that the seed layer preferably contain chromium in addition to tungsten. The production method for the medium comprises an intermediate processing step consisting of a process D of dry-etching the base material and a process S of depositing the seed layer on the base material.</p> |
