Abstract
Well-resolved photoelectron spectra are reported for clusters. The data provide evidence for structural transitions and reveal in detail the molecular to bulk electronic evolution in Co clusters. Clusters with behave molecularlike with discrete transitions and dramatic size variations. Clusters with behave bulklike with broad spectral features and smooth-size evolution. But discrete and well-resolved spectral features are observed around evident of a highly symmetric cluster. The molecularlike to bulklike transition is also shown in the electron affinities as a function of size, which obey the metallic-droplet model above and extrapolate to the bulk workfunction.
- Received 15 June 2001
DOI:https://doi.org/10.1103/PhysRevB.64.153402
©2001 American Physical Society