title: Anion adsorption induced reversal of coherency strain.
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 -0.60 N/m, while conventional epitaxy theory predicts a value of +7.76 N/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.
authors.affiliation: Ira A. Fulton School of Engineering, Arizona State University, Tempe, 85287-6106, USA.
authors.forename: T
authors.initials: T
authors.lastname: Trimble
authors.forename: L
authors.initials: L
authors.lastname: Tang
authors.forename: N
authors.initials: N
authors.lastname: Vasiljevic
authors.forename: N
authors.initials: N
authors.lastname: Dimitrov
authors.forename: M
authors.initials: M
authors.lastname: van Schilfgaarde
authors.forename: C
authors.initials: C
authors.lastname: Friesen
authors.forename: C V
authors.initials: CV
authors.lastname: Thompson
authors.forename: S C
authors.initials: SC
authors.lastname: Seel
authors.forename: J A
authors.initials: JA
authors.lastname: Floro
authors.forename: K
authors.initials: K
authors.lastname: Sieradzki