title: Self-assembled heterogeneous argon/neon core-shell clusters studied by photoelectron spectroscopy.
abstract: Clusters formed by a coexpansion process of argon and neon have been studied using synchrotron radiation. Electrons from interatomic Coulombic decay as well as ultraviolet and x-ray photoelectron spectroscopy were used to determine the heterogeneous nature of the clusters and the cluster structure. Binary clusters of argon and neon produced by coexpansion are shown to exhibit a core-shell structure placing argon in the core and neon in the outer shells. Furthermore, the authors show that 2 ML of neon on the argon core is sufficient for neon valence band formation resembling the neon solid. For 1 ML of neon the authors observe a bandwidth narrowing to about half of the bulk value.
authors.affiliation: Department of Physics, Uppsala University, Box 530, SE-751 21 Uppsala, Sweden. marcus.lundwall@fysik.uu.se
authors.forename: M
authors.initials: M
authors.lastname: Lundwall
authors.forename: W
authors.initials: W
authors.lastname: Pokapanich
authors.forename: H
authors.initials: H
authors.lastname: Bergersen
authors.forename: A
authors.initials: A
authors.lastname: Lindblad
authors.forename: T
authors.initials: T
authors.lastname: Rander
authors.forename: G
authors.initials: G
authors.lastname: Ohrwall
authors.forename: M
authors.initials: M
authors.lastname: Tchaplyguine
authors.forename: S
authors.initials: S
authors.lastname: Barth
authors.forename: U
authors.initials: U
authors.lastname: Hergenhahn
authors.forename: S
authors.initials: S
authors.lastname: Svensson
authors.forename: O
authors.initials: O
authors.lastname: Björneholm