High-Temperature Resistance Minima in Concentrated Pd-Ag and Ni-Cu Alloys

Abstract

The temperature dependence of the electrical resistivity of ${\mathrm{Pd}}_{60}$${\mathrm{Ag}}_{40}$ between 4.2 and 900 K is shown to contain the same anomalies as previously found in Ni-Cu alloys in the midrange of composition. For Pd-Ag these effects cannot be due to scattering at giant polarization clouds, and are attributed to a temperature-dependent decrease of the impurity resistivity due to a reduction in $s\ensuremath{-}d$ scattering with increasing temperature.