N. Inaba et M. Futamoto, Lattice matching effect of Co-(Cr, Ru) alloy underlayer on magnetic properties of Co-Cr-Pt longitudinal recording media, IEEE MAGNET, 36(5), 2000, pp. 2303-2305
Magnetic properties are investigated for Co-Cr-Pt thin films deposited on n
onmagnetic h.c.p.-Co(Cr,Ru) underlayers with different h.c.p. lattice const
ants, Higher coercivity, higher coercive squareness, and lower fluctuation
field are observed when the h.c.p. lattice constant is close to that of the
Co-Cr-Pt recording Layer. Temperature dependence of magnetic properties in
dicates that employment of nonmagnetic Co-Cr-Ru layer is effective to incre
ase the coercivity and to enhance the thermal stability of recording layer.