Electrical Resistivity and Thermoelectric Power of Ni Near the Curie Point

Abstract

It is shown that the thermoelectric power of Ni as a function of temperature exhibits a minimum followed by a maximum in the same temperature interval in which a deviation from the logarithmic temperature dependence of the $\ensuremath{\alpha}(T)=\frac{d\ensuremath{\rho}(T)}{\mathrm{dT}}$ curve was observed. In other samples of the same purity the $\ensuremath{\alpha}(T)$ curve did not show any deviation from the logarithmic temperature dependence and the thermoelectric power is a monotonic function of the temperature.