The Transport Properties of Potassium and Electron-Electron Scattering
The measured transport properties of Potassium display two unusual features at high temperatures: deviations from the Wiedemann-Franz relation, and deviations from linearity in the thermopower. We present here an analysis which shows that both these deviations can be consistently explained in terms of normal electron-electron scattering. The magnitude of this effect, in terms of the thermal resistivity, is Wee/T ~ 190 × 10−6 cm/W.
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