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Analysis of Collective Resonances in Clusters: Metals and Carbon

Published online by Cambridge University Press:  15 February 2011

Vitaly V. Kresin
Vitaly V. Kresin*
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
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Abstract

Dipole photoabsorption spectra of small clusters are analyzed. Two types of systems are considered: metal clusters and the carbon fullerenes. Both have been found to exhibit strong collective photoabsorption modes associated with the motion of delocalized electrons. We describe analytical results for the resonance frequencies in both spherical (closed-shell metallic, C60 ) and spheroidal (openshell metallic, C70) particles. The calculation is based on the techniques of many-body physics (random-phase approximation, sum rules), affords a unified view of the dynamical response of microscopic clusters, and leads to good agreement with experimental data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 272: Symposium O – Chemical Processes in Inorganic Materials: Metal and Semiconductor Clusters , 1992 , 177
Copyright
Copyright © Materials Research Society 1992

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References

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