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Stringlike Chemisorption and Rapid Dissociation of As4 and Sb4 on Si(100)

Published online by Cambridge University Press:  25 February 2011

J. Gryko  and
R. E. Allen
J. Gryko
Affiliation:
Department of Physics, Texas A&M University, College Station, Texas 77843
R. E. Allen
Affiliation:
Department of Physics, Texas A&M University, College Station, Texas 77843
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Abstract

Dodson-type potentials have been constructed for As-As, Si-As, Sb-Sb, and Si-Sb interactions. The parameters were determined by fitting to the energies obtained in first-principles calculations for As-Si and Sb-Si clusters with a variety of geometries. These potentials have been applied in molecular dynamics simulations of As4 and Sb4 chemisorbing on Si(100) at high temperature (900K). We find that both molecules tend to chemisorb in stringlike configurations, and that dissociation into two dimers can occur within only a few picoseconds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 280: Symposium B – Evolution of Surface and Thin Film Microstructure , 1992 , 65
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

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