title: Selective growth and dissolution of Ni on a PdAu bimetallic surface by in situ STM: determining the relative adsorbate-substrate interaction energy.
abstract: By studying the electrochemical growth and dissolution of a Ni monolayer on a PdAu bimetallic surface with in situ STM, we demonstrate that Ni grows preferentially on Au(111) in a wide potential range. In contrast, a Ni monolayer covering the entire bimetallic surface can be selectively dissolved from Pd islands. We show that the Ni-substrate interactions play a key role in this selectivity, and we estimate the binding energy of Ni to Pd to be 80 meV smaller than that of Ni to Au.
authors.affiliation: Physique de la Matière Condensée, Ecole Polytechnique, CNRS, 91128 Palaiseau, France.
authors.forename: A
authors.initials: A
authors.lastname: Damian
authors.forename: F
authors.initials: F
authors.lastname: Maroun
authors.forename: P
authors.initials: P
authors.lastname: Allongue