Berlin 2008 – scientific programme
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O: Fachverband Oberflächenphysik
O 49: Particles and Clusters
O 49.2: Talk
Wednesday, February 27, 2008, 15:30–15:45, MA 005
Absorption spectra of small metal clusters — •George Pal1, Yaroslav Pavlyukh2, Hans Christian Schneider1, and Wolfgang Hübner1 — 1Department of — 2Institut für Physik,
We present results for the
photoabsorption cross sections of small sodium clusters (Na4,
Na9+ and Na21+) calculated by means of a linear
response approach for the electron-hole correlation function.
Following Refs. [1] and [2], we compute the electron-hole
correlation function as the functional derivative of the generalized
density matrix with respect to an external field, which yields an
equation of the Bethe-Salpeter type. This procedure is conserving
and fulfills important sum rules by construction. The theoretical
spectra are in excellent agreement with the experimental
results.
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124, 287 (1961)
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