Initial growth of Au on Ni(110): Surface alloying of immiscible metals

L. Pleth Nielsen, Flemming Besenbacher, I. Stensgaard, E. Laegsgaard, C. Engdahl, Per Stoltze, Karsten Wedel Jacobsen, Jens Kehlet Nørskov

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Atomic resolution scanning tunneling microscopy of Au deposited on Ni(110) shows that even though Au is completely insoluble in bulk Ni, it replaces Ni in the first surface layer forming a surface Au-Ni alloy and the squeezed out Ni atoms agglomerate in Ni islands on the surface. This picture is supported by total energy calculations within the effective-medium theory, which also provide a detailed understanding of this surprising phenomenon.
Original languageEnglish
JournalPhysical Review Letters
Issue number5
Pages (from-to)754-757
Publication statusPublished - 1993

Bibliographical note

Copyright (1993) by the American Physical Society.


  • AG(110)


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