Variational calculation of metal surface energies |
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Authors: | V. Sahni J. Gruenebaum |
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Affiliation: | The New School of Liberal Arts, Brooklyn College of the City University of New York, Brooklyn, NY 11210, U.S.A.;Department of Physics, Brooklyn College of the City University of New York, Brooklyn, NY 11210, U.S.A. |
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Abstract: | A one-parameter model potential variational calculation of jellium—metal surface energies in the local density approximation is performed, the results very closely approximating those of the self-consistent calculations of Lang and Kohn. The use of this model potential for the determination of superior upper bounds for the surface energy and the study of various density gradient expansions is indicated. |
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