ISSN:
1434-6079
Keywords:
32.80.Fb
;
36.40.+d
;
33.20.Kf
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Photo-absorption cross-sections for charged sodium clusters (14 to 48 atoms) have been measured for photon energies from 2.0 eV to 3.5 eV. The spectra are dominated by surface plasma oscillations of the valence electrons exhausting 70–100% of the dipole sum rule. The mean resonance energy of ≃2.75 eV is nearly independent of cluster size. A splitting of the resonance peaks is observed for non-“magic” clusters and discussed in terms of a deformation picture involving prolate and oblate shapes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01429169
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