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Phys. Rev. B 29, 1045–1047 (1984)

Exchange charge density at metallic surfaces

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V. Sahni
Institute for Theoretical Physics, University of California, Santa Barbara, California 93106
Department of Physics, Brooklyn College of the City University of New York, Brooklyn, New York 11210

K.-P. Bohnen
Institute for Theoretical Physics, University of California, Santa Barbara, California 93106
Institut für Angewandte Kernphysik I, Kernforschungszentrum Karlsruhe, D-7500 Karlsruhe, Postfach 3640, Federal Republic of Germany

Received 21 September 1983; published in the issue dated 15 January 1984

We have discovered that the average exchange charge density at metallic surfaces is not localized to the surface region, but has a width dependent upon the position of the electron from the surface. As the electron is removed to infinity the hole spreads over the entire crystal. This surprising result is explained, and we conclude that it is principally the correlation hole which consequently must form the image charge at a metal surface.

© 1984 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.29.1045
DOI:
10.1103/PhysRevB.29.1045
PACS:
 
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