| 摘要 |
A magnetic recording medium 1 includes a substrate 11; and a metallic glassy layer 12 that is arranged on the substrate 11 and has a plurality of convex portions 12A and concave portions 12B. The metallic glassy layer 12 has a chemical composition represented by any one of the formulae (1) to (3):
FemPtnSixByPz (wherein, 20<m≦60 at %, 20<n≦55 at %, 11≦x<19 at %, 0≦y<8 at %, and 0<z<8 at %) (1);Fe55Pt25(SixByPz)20 (wherein, 11≦x<19 at %, 0≦y<8 at %, and0 <z<8 at %) (2); and(Fe0.55Pt0.25Si0.16B0.02P0.02)100-xMx (wherein, 0<X≦6 at %; and M represents an element or a combination of any two or more of the elements selected from Zr, Nb, Ta, Hf, Ti, Mo, W, V, Cr, Mn, Al, Y, Ag,and rare earth elements.) (3). |
| 主权项 |
1. A metallic glass comprising a chemical composition of said metallic glass is represented by the formula (1):
FemPtnSixByPz (wherein, 20<m≦60 at %, 20<n≦55 at %, 11x<19 at %, 0≦y<8 at %, and 0<z<8 at %) (1), wherein said metallic glass has the hard magnetic property. |
