Specific heat of amorphous U?Fe,U?Co and U?Ni-alloys

Alloys of U-X with X=Fe, Co, Ni were prepared by rapid quenching in the concentration range between 50 and 83 at% U. The samples were obtained in the amorphous state as determined by X-ray diffraction. Parts of the samples were used to measure the specific heat by the relaxation method. The calculated density of states is twice as large as that of transition metals like amorphous Zr-alloys. Therefore these results are discussed within the frame of the paramagnon model by taking into account values of the magnetic susceptibility and the supercon-ducting transition temperature.