Abstract
UV photoemission spectra of valence electrons in small silver clusters have been compared with spectra from bulk silver samples using synchrotron radiation, 16 < hν< 27 eV. Spectra for single silver atoms supported on carbon are indicative of a completely filled 4d 10 initial state configuration. With increased cluster size, both density of states and valence band modulations with respect to photon energy resemble the bulk metal more closely. Spectral modulation, characteristic of conservation of crystal momentum, appears to require a cluster consisting of ∼150 atoms.
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