ISSN:
1434-6079
Keywords:
36.40.+d
;
34.50.−s
;
35.20.Gs
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The stability of gold cluster ions Au n + (2≦n≦23) has been investigated via collision induced dissociation in a Penning trap. Threshold energies and dissociation channels have been determined. The cluster stability exhibits a pronounced odd — even alternation: Clusters with an odd number of atoms,n, are more stable than the even-numbered ones. Enhanced stabilities are found for Au 3 + , Au 9 + , and Au 19 + in accordance with the Clemenger-Nilsson and the deformed jellium model of delocalized valence electrons. Excited odd cluster ions withn≦15 predominantly decay by evaporation of dimers; all others decay by monomer evaporation. From the dissociation channels estimates of the binding energies are deduced.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01426399
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