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Electrostatic Models of Relaxation at Metal Surfaces

Published online by Cambridge University Press:  28 February 2011

P. M. Marcus ,
P. Jiang  and
F. Jona
P. M. Marcus
Affiliation:
IBM Research Center, P.O. Box 218, Yorktown Heights, New York 10598, U.S.A
P. Jiang
Affiliation:
College of Engineering and Applied Science State University of New York, Stony Brook, New York 11794, U.S.A On leave from the Physics Department, Fudan University, Shanghai, PRC
F. Jona
Affiliation:
College of Engineering and Applied Science State University of New York, Stony Brook, New York 11794, U.S.A On leave from the Physics Department, Fudan University, Shanghai, PRC
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Abstract

The physical basis for electrostatic models of relaxation at metal surfaces, including the meaning of the two parameters of the modified point-ion or α model, is discussed. The empirical α parameter is shown to produce agreement with experiment and to arise from the non-uniformity of the fixed background of electronic charge around the ions. An explicit non-uniform model of the background charge is defined which is shown to be equivalent to the successful α model and provides an example of a pure electrostatic model without empirical parameters.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 141: Symposium T – Atomic Scale Calculations in Materials Science , 1988 , 457
Copyright
Copyright © Materials Research Society 1989

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References

1. Jona, F. and Marcus, P. M. in The Structure of Surfaces II, ed. by Veen, J.F. van der and Hove, M.H. Van (Springer, 1988) pp.90–99, list 61 published metal surface relaxations by various techniques as of June, 1987; 50 are by LEED and 10 by ion scattering.CrossRefGoogle Scholar
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