Article ID Journal Published Year Pages File Type
1772436 High Energy Density Physics 2013 6 Pages PDF
Abstract

The paper presents electronic heat capacities and thermal pressures calculated for aluminum and tungsten at densities ρ0 ≤ ρ ≤ 2ρ0 in the case when the temperature of electrons is finite (a few electron-volts) and nuclei are cold. Calculations were done with the all-electron full-potential linear muffin-tin orbital method (FP-LMTO) and compared with data obtained with the Liberman's average-atom model and the Vienna Ab-initio Simulation Package code (VASP) which uses pseudopotentials. It is shown that results obtained with different approaches qualitatively agree within the ranges of electron temperatures and densities under consideration, and quantitatively agree within 10% in most cases.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Astronomy and Astrophysics
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