title: Chemical reactivity of Ni-Rh nanowires.
abstract: The properties of bimetallic Ni-Rh nanowires, fabricated by decorating the steps of vicinal Rh(111) surfaces by stripes of self-assembled Ni adatoms, have been probed by STM, photoemission, and ab initio density functional theory calculations. These Ni-Rh nanowires have specific electronic properties that lead to a significantly enhanced chemical reactivity towards oxygen. As a result, the Ni-Rh nanowires can be oxidized exclusively, generating novel quasi-one-dimensional oxide structures.
authors.affiliation: Institute of Physics, Surface and Interface Physics, Karl-Franzens University Graz, A-8010 Graz, Austria.
authors.forename: J
authors.initials: J
authors.lastname: Schoiswohl
authors.forename: F
authors.initials: F
authors.lastname: Mittendorfer
authors.forename: S
authors.initials: S
authors.lastname: Surnev
authors.forename: M G
authors.initials: MG
authors.lastname: Ramsey
authors.forename: J N
authors.initials: JN
authors.lastname: Andersen
authors.forename: F P
authors.initials: FP
authors.lastname: Netzer