Abstract
The thermal resistivity of metals due to electron-electron scattering is calculated by using the static-screening potential with the screening length determined by the compressibility which is derived from the Monte-Carlo values for the correlation energy. The result is compared with other theories and experiment. It is found that the resistivity depends quite sensitively on the screening length, with the theory based on the approximate correlation energy differing significantly from the present result. Compared with other more sophisticated theories, the present simple model is found to agree with experiment reasonably and competitively well, and much better than the result with the Fermi-Thomas screened-Coulomb potential. The inclusion of core polarization and band mass changes the thermal resistivity by up to 35% for sodium, potassium, rubidium, and cesium and by an order of magnitude for lithium.
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