Physics – Condensed Matter
Scientific paper
1997-06-20
J. Phys. B., vol 30, pp 1-14 (1997)
Physics
Condensed Matter
13 pages, latex, 8 figures, compressed postscript version available at http://www.fis.uc.pt/~vieira
Scientific paper
10.1088/0953-4075/30/15/025
We compare Kohn-Sham results (density, cohesive energy, size and effect of charging) of the Spherical Averaged Pseudopotential Model with the Stabilized Jellium Model for clusters of sodium and aluminum with less than 20 atoms. We find that the Stabilized Jellium Model, although conceptually and practically more simple, gives better results for the cohesive energy and the elastic stiffness. We use the Local Density Approximation as well as the Generalized Gradient Approximation to the exchange and correlation energies.
Balbas Carlos L.
Fiolhais Carlos
Torres Begona M.
Vieira Armando
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