Atomic-layer-resolved quantum oscillations in the work function: Theory and experiment for Ag/Fe(100)

J. J. Paggel, C. M. Wei, M. Y. Chou, D. A. Luh, T. Miller, T. C. Chiang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The work function of atomically uniform Ag films grown on Fe(100) is measured as a function of film thickness. It shows layer-resolved variations as a result of quantum confinement of the valence electrons. A first-principles calculation reproduces the observed variations except for very thin films (one and two monolayers), and the differences can be attributed, in part, to strain effects caused by the lattice mismatch between Ag and Fe. These results illustrate the close interaction between interface effects and surface properties.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number23
DOIs
StatePublished - 2002

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