Magnetic properties of Ho-Co and Ho-Fe amorphous films

Polar-Faraday-rotation and magnetization measurements on evaporated amorphous films of Ho-Co and Ho-Fe show that the principle mechanism responsible for differences in the TC of the crystalline and amorphous states is the altered electronic configuration of the transition metal, rather than local anisotropy. Additionally we found that the films possess uniaxial anisotropy. © 1974 The American Physical Society.