Unimolecular decomposition of sputtered Aln +, Cun +, and Sin + clusters.
作者： W. Begemann , K. H. Meiwes-Broer , H. O. Lutz
DOI: 10.1103/PHYSREVLETT.56.2248
关键词:
摘要: The metastable decomposition of sputtered, mass-selected, cluster ions is investigated under ultrahigh-vacuum conditions. Highly excited $\mathrm{Al}_{n}^{}{}_{}{}^{+}$ and $\mathrm{Cu}_{n}^{}{}_{}{}^{+}$ are found to decompose mainly by evaporation single neutral atoms, whereas for $\mathrm{Si}_{n}^{}{}_{}{}^{+}$ clusters, fission also observed. decay rates clusters in agreement with calculations presented Klots. Some consequences our results the interpretation cluster-ion mass spectra produced other experimental methods discussed.
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