Influence of electron distribution on atomic interaction potentials

Intrinsic defect energies of lithium hydride and lithium deuteride crystals

“…(i) V, , and VDD (the anion-anion short-range interactions) are obtained by using the theoretical models developed by Wedepohl (1967) and Gordon and Kim (1972). These models are based on the density functional treatment of the uniform electron gas.…”

Calculation of helium defect clustering properties in iron using a multi-scale approach

“…A so far and the majority of calculations performed [6][7][8][9][10] were based on empirical pair potentials for He in metals, particularly in Fe, as constructed by Wilson [11] in the late 1960s. The Fe potential was calculated using the modified Wedepohl [12] method based on the Thomas-Fermi-Dirac formalism. The exchange energy of the electrons was treated within the homogeneous gas approximation, ignoring correlation effects.…”

The calculation of intermolecular forces. A critical examination of the Gordon-Kim model

“…There were many prior examples in the literature of models similar to that of Gordon and Kim. Many of the detailed approximations had been foreshadowed by earlier treatments, particularly those of Sida [40], Wedepohl [41], Abrahamson [42] and Gaydaenko and Nikulin [43]. These approaches all stem from the Thomas-Fermi (TF) and Thomas-Fermi-Dirac (TFD) theories.…”

“…A significant difference between GK theory and TFD theory is that in the former the density is input from more accurate calculations while in the latter it is obtained variationally (see § 2). This approach had already been investigated by Wedepohl [41] for example. What made the Gordon-Kim paper a turningpoint was that until their paper the realm of applicability of these theories had been restricted to the repulsive region.…”