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Atomic Structure of Binary Alloy Surfaces

Published online by Cambridge University Press:  25 February 2011

H. L. Davis  and
J. R. Noonan
H. L. Davis
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6032
J. R. Noonan
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6032
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Abstract

After discussions of multilayer relaxation for monatomic metallic surfaces and low-energy electron diffraction (LEED) procedures, some available results concerning the atomic structure of alloy surfaces are reviewed briefly. Results are discussed only for surfaces of ordered binary alloys and crystalline, substitutionally random binary alloys. Surfaces for which detailed results are available are highlighted as examples which illustrate some general crystallographic effects that occur at alloy surfaces. Specific effects included in the examples are the rippling of atomic constituents in the surface layers of ordered alloys, the preferential termination of alloys by a specific type of layer where more than one type of layer exists in the bulk, a mixture of two possible terminations, and the alternating enrichment and depletion of an atomic constituent in the surface layers of alloys which are disordered in the bulk.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 83: Symposium J – Physical and Chemical Properties of Thin Metal Overlayers and Alloy Surfaces , 1986 , 3
Copyright
Copyright © Materials Research Society 1987

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References

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