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Silicon AD-Dimer Binding on Si(100)

Published online by Cambridge University Press:  15 February 2011

Peter J. Bedrossian ,
Arthur P. Smith  and
Hannes Jonsson
Peter J. Bedrossian
Affiliation:
Lawrence Livermore National Laboratory, L-350, Livermore CA 94551.
Arthur P. Smith
Affiliation:
Department of Chemistry, BG-10, University of Washington, Seattle WA 98195.
Hannes Jonsson
Affiliation:
Lawrence Livermore National Laboratory, L-350, Livermore CA 94551.
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Abstract

Isolated Si ad-dimers nucleate predominantly on Si(100) substrate dimer rows at room temperature. Using tunneling microscopy (STM), we find that, while ad-dimers oscillate between two mutually orthogonal orientations, the geometry with the ad-dimer bond perpendicular to the substrate's dimer bonds is the more stable. This observation confirms a prediction of ab initio calculations with a gradient correction for the energies of ad-dimers in various configurations, which differs from that of the local density approximation (LDA).

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 389: Symposium R – Modedling and Simulation of Thin-Film Processing , 1995 , 35
Copyright
Copyright © Materials Research Society 1995

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References

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