Patent ID: 7407719

Claim:
A longitudinal granular oxide recording medium, comprising: (a) at least one non-magnetic layer with body-centered cubic atomic structure with a (200) preferred growth orientation, (b) at least one interlayer with hexagonal close packed atomic structure and with a <11-20> preferred growth orientation, (c) at least one magnetic oxide-containing granular magnetic layer with hexagonal close packed atomic structure and with a <11-20> preferred growth orientation wherein the interlayer comprises at least two layers: a first interlayer, IL 1 , located above first layer (a) and comprising a Co—X alloy, wherein X is selected from the group consisting of Cr, Pt, Ta, B, W, Mo, Ru, Si, Cu, Ag, Ge, Nb, Fe, Ni, Au and combinations thereof, and a second interlayer, IL 2 , comprising a Ru—Y alloy, wherein Y is selected from the group consisting of Rh, Ir, Cr, Re, Co, V, W, Ta, Zr, Hf, Ti, Mo, Au and combinations thereof.