Thermopower and resistivity in amorphousCu1−xZrxalloys

The thermopower and resistivity of a series of ${\mathrm{Cu}}_{1-x}{\mathrm{Zr}}_x$ alloys have been measured between 2 and 300 K for $0.3<x<\mathrm{}0.7\mathrm{}$. The composition dependence of the results cannot be explained on the basis of the simple Ziman liquid-metal model. Inclusion of partial structure factors in the Faber-Ziman sense considerably improves the agreement with experiment. This improvement is almost entirely due to the "cross" term containing the Cu-Zr partial structure factor and indicates the crucial role played by this term in calculating the thermopower.