Resistivity of liquid metals under elevated pressure

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Abstract
The variations of scaled resistivities of a representative set of simple liquid metals are evaluated as a function of pressure. The resistivities are determined within the framework of the nearly-free-electron model while the pressures are obtained from variational calculations of the free energy. Structural information is provided by the hard-sphere approximation to the actual liquid structure. In general, the scaled resistivities show a dependence on pressure that is quite sensitive to the detailed form of the electron-ion interaction, or pseudopotential. For the case of potassium, where experimental results are available, the agreement between the calculated and experimental results is quite satisfactory.