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Geometrical and quantal fragmentation of optical response in |
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| Authors: | A Domps E Suraud P-G Reinhard |
| Institution: | Laboratoire de Physique Quantique, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex, France, FR Institut für Theoretische Physik II, Universit?t Erlangen-Nürnberg, Staudtstr. 7, 91058 Erlangen, Germany, DE |
| Abstract: | By comparing quantal and semi-classical calculations of optical response, we work out the part of the splitting of the plasmon spectra which is exclusively due to geometrical effects. We apply the analysis to the test case which exhibits an interesting geometry with strong prolate quadrupole deformation and a pronounced asymmetry in addition. We find a new type of resonance splitting which is due to geometrical effects but goes beyond the simple and well known deformation splitting. Received: 6 April 1998 / Accepted: 24 April 1998 |
| Keywords: | PACS 36 40 Vz Optical properties of clusters - 36 40 Gk Plasma and collective effects in clusters - 36 40 Mr Spectroscopy and geometrical structure of clusters |
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