Abstract: A perpendicular magnetic recording medium is disclosed. The perpendicular magnetic recording medium includes a substrate; an intermediate layer disposed on the substrate; at least one soft underlayer (SUL) disposed between the substrate and the intermediate layer, wherein the soft underlayer contacts the intermediate layer and the substrate; and a magnetic recording layer disposed on the intermediate layer.

Abstract: A magnetic recording medium has a substrate, an underlayer on the substrate, a multiple-laminated magnetic layer, a non-magnetic CoCr-based interlayer interposed between the multiple-laminated magnetic layer and the underlayer, and a protecting layer coated on the multiple-laminated magnetic layer. The multiple-laminated magnetic layer having at least a lower magnetic layer deposited, a spacer layer deposited on the lower magnetic layer, a upper magnetic layer deposited on the spacerII layer, and a non-magnetic CoCr-based spacerII layer deposited between the upper magnetic layer and the spacer layer. The multiple-laminated magnetic layer is used to record data. The non-magnetic CoCr-based spacerII layer is used to enhance preferred orientation and lattice matching between the upper magnetic layer and the spacer layer.