Optical response of small closed-shell sodium clusters - Condensed Matter > Materials ScienceReport as inadecuate




Optical response of small closed-shell sodium clusters - Condensed Matter > Materials Science - Download this document for free, or read online. Document in PDF available to download.

Abstract: Absorption spectra of closed-shell Na 2, Na 3+, Na 4, Na 5+, Na 6, Na 7+, andNa 8 clusters are calculated using a recently implemented conserving linearresponse method. In the framework of a quasiparticle approach, we determineelectron-hole correlations in the presence of an external field. The calculatedresults are in excellent agreement with experimental spectra, and some possiblecluster geometries that occur in experiments are analyzed. The position and thebroadening of the resonances in the spectra arise from a consistent treatmentof the scattering and dephasing contributions in the linear responsecalculation. Comparison between the experimental and the theoretical resultsyields information about the cluster geometry, which is not accessibleexperimentally.



Author: George Pal, Georgios Lefkidis, Hans Christian Schneider, Wolfgang Huebner

Source: https://arxiv.org/







Related documents