Lundwall M, Pokapanich W, Bergersen H, Lindblad A, Rander T, Ohrwall G, Tchaplyguine M, Barth S, Hergenhahn U, Svensson S, Björneholm O
Department of Physics, Uppsala University, Box 530, SE-751 21 Uppsala, Sweden.
J Chem Phys. 2007 Jun 7;126(21):214706. doi: 10.1063/1.2735607.
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.
