Amorphous metallic films for magneto-optic applications

It has been demonstrated that perpendicular uniaxial anisotropy and compensation points in the vicinity of room temperature can be obtained in amorphous thin films of rare-earth - transition-metal alloys. The magneto-optic properties of these films are reported, and it is shown that a remarkably good signal-to-noise ratio can be obtained in a thermomagnetically written film. © 1973 American Institute of Physics.