Electronic shell structure of group-IIIA metal atomic clusters

Kenneth E. Schriver, John L. Persson, Eric C. Honea, Robert L. Whetten

Research output: Contribution to journalArticlepeer-review

236 Scopus citations


Ionization potentials of Aln and Inn clusters (n<80) in supercooled beams have been measured by photoionization spectroscopy. The abrupt leveling near n=5 of the initial linear increase in ionization potentials and the subsequent gradual approach to the classical metallic sphere model are consistent with a simple picture of s-p band hybridization. For n>6, there is clear evidence of electron shell filling, yet substantial deviations from shell-model predictions remain. Crystal-field effects are considered the most probable source of symmetry breaking and give insight to cluster structure.

Original languageEnglish (US)
Pages (from-to)2539-2542
Number of pages4
JournalPhysical Review Letters
Issue number21
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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