title: Photoelectron spectroscopy of chromium-doped silicon cluster anions.
abstract: The photoelectron spectra of chromium-doped silicon cluster anions, CrSi-(n), were measured over the size range, n=8-12. Their vertical detachment energies were measured to be 2.71, 2.88, 2.87, 2.95, and 3.18 eV, respectively. Our results support theoretical calculations by Khanna, Rao, and Jena [Phys. Rev. Lett. 89, 016803 (2002)] which found CrSi12 to be an enhanced stability (magic) cluster with its chromium atom encapsulated inside a silicon cage and with its magnetic moment completely quenched by the effects of the surrounding cage.
authors.affiliation: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Weijun
authors.initials: W
authors.lastname: Zheng
authors.forename: J Michael
authors.initials: JM
authors.lastname: Nilles
authors.forename: Dunja
authors.initials: D
authors.lastname: Radisic
authors.forename: Kit H
authors.initials: KH
authors.lastname: Bowen