Title
Nonlocal relation between kinetic and exchange energy densities in the Bardeen model of a planar metal surface Nonlocal relation between kinetic and exchange energy densities in the Bardeen model of a planar metal surface
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Source (journal)
Physical Review B
Volume/pages
61(2000) :7 , p. 5011-5012
ISI
000085497200112
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The infinite barrier model of a planar metal surface, going back to Bardeen, is shown to permit the kinetic energy density to be written explicitly in terms of the ground-state electron density and its first derivative. The exchange energy density is then written in what proves to be an explicitly nonlocal form in terms of the electron density. Finally, by integrating the first-order equation for the electron density in terms of the kinetic energy density, a precise relation is established in this metal surface model between exchange and kinetic energy densities.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/d62605/6803.pdf
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