Surface barrier in metals: A new model with application to W(001)
Author(s) -
R. Jones,
Philip Jennings,
O. Jepsen
Publication year - 1984
Publication title -
physical review. b, condensed matter
Language(s) - English
Resource type - Journals
eISSN - 1095-3795
pISSN - 0163-1829
DOI - 10.1103/physrevb.29.6474
Subject(s) - electron , materials science , electron diffraction , surface (topology) , transition metal , plane (geometry) , diffraction , atomic physics , low energy electron diffraction , condensed matter physics , physics , optics , chemistry , nuclear physics , geometry , biochemistry , mathematics , catalysis
A new model of the surface barrier at a metal surface is presented. It is one dimensional, has two adjustable parameters z0, the location of the image plane, and, which determines the length scale of the transition from vacuum to bulk), and its form is suggested by the results of self-consistent electronic-structure calculations for a five-layer film of W(001) described here. The optimum form for electrons with incident energies below 10 eV is determined by comparison with available low-energy-electron-diffraction data from W(001).
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