Electronic Resource
Springer
The European physical journal
12 (1989), S. 199-203
ISSN:
1434-6079
Keywords:
36.40
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A detailed study of the stability of alkali-atom clusters is presented and discussed. Free clusters are produced in an unseeded adiabatic expansion and ionized by a pulsed laser beam. A tandem time-of-flight system provides a size selection of ionized species and mass spectrometry of fragments. We have investigated for sodium and potassium clusters containing up to fifty atoms: the metastable decay following ionization, the photo-induced dissociation, the collisional induced dissociation and the collisional charge exchange. Experimental evidence is shown for dissociative process involving evaporation of monomers and dimers. This is explained by the statistical unimolecular theory and by the energetics of the systems.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01426937
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