Thermoelectric Power of Dilute Cu-Ni Alloys in a Magnetic Field

The thermoelectric powers (TEP) of four dilute CuNi alloys and one CuCo alloy have been measured in the presence of a transverse magnetic field. The presence of the field did not induce any anomalous behavior in the TEP. There seems to be no systematic field effect in the temperature range of 4.2 to 20^∘{}K, and the maximum change due to a 10-kOe field was 0.05 {μ}V/^∘{}K. The temperature dependence of the absolute TEP of the CuNi alloys suggested that the diffusion component might follow a Gorter-Nordheim relation. An analysis consistent with this relation and assuming an unsplit virtual state is presented.