抄録
The effects of annealing (1 hour) on the magnetic properties of Co-Cr-M (M=Au, Pt, Nb, Ta) alloy films with Ti underlayers were studied. All the films exhibited an increase in perpendicular coercivity and perpendicular squareness, resulting in high coercivities of more than 2500 Oe and a high perpendicular squareness of 0.6. The saturation magnetization decreased drastically with annealing temperatures above 400°C because of interdiffusion between Co and Ti. An MFM image of a sample annealed at 600°C showed a fine magnetic domain structure.
