Anion adsorption induced reversal of coherency strain

T. Trimble, L. Tang, N. Vasiljevic, N. Dimitrov, M. Van Schilfgaarde, Cody Friesen, C. V. Thompson, S. C. Seel, J. A. Floro, Karl Sieradzki

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22 Scopus citations

Abstract

Experimental results are presented for stress evolution, in vacuum and electrolyte, for the first monolayer of Cu on Au(111). In electrolyte the monolayer is pseudomorphic and the stress-thickness change is -0.60N/m, while conventional epitaxy theory predicts a value of +7.76N/m. In vacuum, the monolayer is incoherent with the underlying gold. Using a combination of first-principles based calculations and molecular dynamic simulations we analyzed these results and demonstrate that in electrolyte, overlayer coherency is maintained owing to anion adsorption.

Original languageEnglish (US)
Article number166106
JournalPhysical Review Letters
Volume95
Issue number16
DOIs
StatePublished - Oct 14 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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