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New self-consistent quasistatic approximation for screening and plasma dispersion in the electron gas
Phys. Rev. B 9, 2000 – Published 15 February, 1974
DOI: https://doi.org/10.1103/PhysRevB.9.2000
Abstract
A new self-consistent quasistatic screening approach is proposed for studying the properties of an interacting electron gas. The compressibility divergence and the ferromagnetic instability found in the static unscreened Hartree-Fock approximation are nonexistent in this scheme. A better fit to the experimental data on the plasma dispersion relation than the existing calculations for free-electron metals is obtained.
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