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We present a first application of the very reliable modified hypernetted-chain (MHNC) integral equation for liquid metals to the analysis of a very recent experimental study on the structure of liquid potassium as a function of temperature by Jal et al. The theoretical model is based on a simple Ashcroft empty-core pseudopotential with the Ichimaru-Utsumi dielectric function. The value chosen for the core radius (1.225 Å) gives good overall agreement between the calculated structure factors and the experimental ones over a wide range of temperatures. We then show how this method can be applied to investigate the qualities of the given interatomic potential by analysing at the same time and consistently thermodynamics, structural and transport properties of the liquid.
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Kahl et al. (1988) studied this question.
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