Concentration and the temperature dependence of the in-plane uniaxial anisotropy in amorphous CoZrDy thin films

Amorphous transition metal-rare-earth thin films of composition (Co/sub 0.95/Zr/sub 0.05/)/sub 100-x/(Dy)/sub x/ were prepared by RF sputtering. During deposition a DC magnetic field of 700 Oe was applied parallel to the film plane, so the films exhibit a very well defined in-plane uniaxial anisotropy K/sub u/. The variations of K/sub u/ were investigated as a function of Dy content for the concentration range 9/spl les/x/spl les/26 and in the temperature range 4 K>