| PROGRESS IN SURFACE SCIENCE | VOLUME 54, NUMBER 3 | MARCH 1997 |
|---|
R. A. English, S. G. Davison, Z. L. Miskovic, F. O. Goodman
Department of Applied Mathematics,
University of Waterloo
Waterloo, Ontario,
Canada,
N2L 3G1
A. T. Amos,
Department of Computer Science and Applied Mathematics,
Aston University
Birmingham,
United Kingdom,
B4 7ET
and B. L. Burrows
Mathematics Group,
School of Computing,
Staffordshire University
Beaconside, Stafford,
United Kingdom,
ST18 0DG
The electronic structure of an electrified finite chain of atoms is investigated by means of the causal-surface-Green-function (CSGF) method, whose recursive nature results in a continued-fraction form of the CSGF, which can be written as a ratio of Bessel functions. The chemisorption process is described by the self-consistent Anderson-Newns model. Using the Dyson equation, the adatom CSGF is obtained from which the chemisorption functions are extracted. These provide access to the chemisorption energy and adatom charge transfer in terms of the system's parameters. Results are discussed in terms of the Wannier-Stark effect on the chemisorption process.
last updated Sat Oct 20 00:47 EDT 2001 by
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