| 摘要 |
The present invention provides a metallic glass having a chemical composition represented by any one of the following 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 %, and 0<z<8 at %) (2); and (Fe0.55Pt0.25Si0.16B0.02P0.02)100-xMx (3) (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.). The present invention provides a magnetic recording medium 1 comprising: 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 above formulae (1) to (3).
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