Magnetic recording medium and magnetic storage device

A magnetic recording medium comprising:

• a substrate;
• a soft magnetic underlayer laminated on the substrate;
• an amorphous barrier layer laminated on the soft magnetic underlayer;
• and
• a magnetic recording layer laminated on the amorphous barrier layer,
• wherein the soft magnetic underlayer includes Fe, B, Si, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta,
• wherein a content of B is in a range of 12% by mol to 16% by mol, and a content of Si is in a range from 5% by mol to 15% by mol,
• wherein the amorphous barrier layer includes Si, W, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta,
• wherein a content of Si is in a range from 10% by mol to 30% by mol, and a content of W is in a range from 20% by mol to 60% by mol, and
• wherein the magnetic recording layer includes an alloy having an L10 structure.