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Concentration-Dependent Surface-State Shifts: Au on Cu(001)

Published online by Cambridge University Press:  15 February 2011

J. C. Hansen
Affiliation:
Eastman Kodak Research, Rochester, NY
M. K. Wagner
Affiliation:
Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706
J. G. Tobin
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550
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Abstract

High-resolution angle-resolved photoemission has been used to investigate the behavior of the Cu(001) surface state as a function of Au coverage and substrate temperature. Binding-energy shifts of this state are dependent on the concentration of Au atoms substituted into the top surface layer of the Cu(001) substrate. The results demonstrate the use of surfacelocalized Tamm states as a specific probe of the chemical environment in the surface plane.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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