Low-Temperature Specific Heats of GlassyPd1−x−ySixCuyAlloys

Measurements are reported of low-temperature specific heats in a number of binary and ternary amorphous Pd-Si and Pd-Si-Cu alloys. The results indicate that the linearterm temperature coefficient, $\gamma$, changes with electron concentration and shows a pronounced maximum near $\frac{e}{a}=1.6\mathrm{}$. The glassy alloys are also characterized by a large $T^5$-term coefficient and a relatively low limiting Debye temperature. The hypothesis of a minimum in the density of states at the Fermi level within the glassy range has not been confirmed.