抄録
Au/Co artificial superstructured films were prepared by alternate deposition technique in ultra high vacuum. A large perpendicular anisotropy was found when the Co layers were thinner than 20Å. By torque measurement the maximum value of K⊥ at room temperature is estimated to be 9.6×106 erg/ cm3. The surface anisotropy energy constant Ks is about 0.4 erg/cm2. Magnetoresistivity was measured as a function of perpendicularly applied magnetic field. The obtained curve is hysteretic, showing a peak in the vicinity of Hc. The maximum change of resistivity is about 4% at 77 K.
