Self-assembled heterogeneous argon/neon core-shell clusters studied by photoelectron spectroscopy.
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.
Lundwall
M
M
Department of Physics, Uppsala University, Box 530, SE-751 21 Uppsala, Sweden. marcus.lundwall@fysik.uu.se
Pokapanich
W
W
Bergersen
H
H
Lindblad
A
A
Rander
T
T
Ohrwall
G
G
Tchaplyguine
M
M
Barth
S
S
Hergenhahn
U
U
Svensson
S
S
Björneholm
O
O