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Metallic slabs: perturbative treatments based on jellium
Fiolhais, C.; Henriques, C.; Sarría, I.; Pitarke, J. M.We examine first-order perturbative results based on jellium for the surface energy of slabs of simple metals, using various local pseudo-potentials (Ashcroft, Heine–Abarenkov and evanescent core). The difference between the pseudo-potential and the jellium potential is averaged along the plane parallel to the surface. We compare these perturbative results with those of the stabilized-jellium model (a modificat...
Slabs of stabilized jellium: Quantum-size and self-compression effects
Sarria, I.; Henriques, C.; Fiolhais, C.; Pitarke, J. M.We examine thin films of two simple metals (aluminum and lithium) in the stabilized jellium model, a modification of the regular jellium model in which a constant potential is added inside the metal to stabilize the system for a given background density. We investigate quantum-size effects on the surface energy and the work function. For a given film thickness we also evaluate the density yielding energy stabil...
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