Self-Consistent Field Calculation of Electron Pressure for Dense Plasmas with Medium-Low Temperature

Criterion for determining free electrons in general SCF average atomic model is revised to describe well the existence of the potential in condensed matter, and, partial wave and Fermi-Dirac statistics are employed for dealing with the resonant electrons and free electrons, individually. The electron pressure is acquired by taking into account the contribution of the resonant states and that of exchange and Coulomb correlations among electrons. The electron pressures for Ni and Cu at zero-temperature are calculated and compared with experiments. Applicability of the model is shown via calculations of pressure for Fe and Pb at definite low temperature and some densities.