@inbook{744,
  abstract     = {{Silver cluster ions are produced by sputtering of solid silver by 25 keV Xe+ bombardment. After mass selection, collinear ion beam depletion technique is used to measure absolute photofragmentation cross-sections in the photon energy range from ħω = 2.3 to 5.7 eV. Giant resonances are found which can be interpreted in terms of a collective electron oscillation. The optical spectra of spherical Ag 9 + and Ag 21 + show a blue shift of the resonance energy, in contrast to an expected behaviour within the jellium model. For Ag 11 +, a splitting of the giant resonance is found.}},
  author       = {{Tiggesbäumker, J. and Köller, Lars and O. Lutz, H. and Meiwes-Broer, Karl-Heinz}},
  booktitle    = {{Physics and Chemistry of Finite Systems: From Clusters to Crystals}},
  editor       = {{Jena, P. and N. Khanna, S. and K. Rao, B.}},
  isbn         = {{978-94-017-2647-4}},
  keywords     = {{Oscillator Strength, Collective Excitation, Giant Dipole Resonance, Silver Cluster, Gigant Resonance}},
  pages        = {{1001--1006}},
  publisher    = {{Springer}},
  title        = {{{Collective Excitation in Silver Cluster Ions}}},
  doi          = {{https://doi.org/10.1007/978-94-017-2645-0_135}},
  volume       = {{374}},
  year         = {{1992}},
}