RESISTIVITY OF SOLID AND LIQUID SODIUM.
TECHNICAL REPT. NO. 25,
CALIFORNIA UNIV SAN DIEGO LA JOLLA
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A theoretical study was made of the resistivity of solid and liquid sodium. Inelastic neutron scattering data were utilized to obtain the required information about the dynamics of the ions. The electron phonon interaction is characterized by phase-shifts, two of which are used as adjustable parameters. Although the calculation is believed to incorporate accurately many body effects, Umklapp processes, time dependent effects, etc. agreement with experiment is disappointing. The calculated resistivity exceeds the experimentally measured values by a factor of the order of 2 at low temperatures, and above the melting point there are again discrepancies of this order. No convincing explanation of these disagreements was found. Author