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Theory for Optical Absorption in Small Clusters: Dependence on Atomic Structure and Cluster Size
Abstract
We present a theory which permits for the first time a detailed analysis of the dependence of the absorption spectrum on atomic structure and cluster size. Thus, we determine the development of the collective excitations in small clusters and show that their broadening depends sensitively on the tomic structure, in particular at the surface. Results for Hg_n^+ clusters show that the plasmon energy is close to its jellium value in the case of spherical-like structures, but is in general between w_p/ \wurzel{3} and w_p/ \wurzel{2} for compact clusters. A particular success of our theory is the identification of the excitations contributing to the absorption peaks.
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Publikationen (Theoretische Physik II - Theoretische Festkörper- und Ultrakurzzeitphysik)Citation
@article{urn:nbn:de:hebis:34-2008062322166,
author={Grabowski, S. and Garcia, Martin E. and Bennemann, K. H.},
title={Theory for Optical Absorption in Small Clusters: Dependence on Atomic Structure and Cluster Size},
year={1994}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 1994$n1994 1500 1/eng 2050 ##0##urn:nbn:de:hebis:34-2008062322166 3000 Grabowski, S. 3010 Garcia, Martin E. 3010 Bennemann, K. H. 4000 Theory for Optical Absorption in Small Clusters: Dependence on Atomic Structure and Cluster Size / Grabowski, S. 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/urn:nbn:de:hebis:34-2008062322166=x R 4204 \$dAufsatz 4170 7136 ##0##urn:nbn:de:hebis:34-2008062322166
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2008-06-23T08:57:49Z 2008-06-23T08:57:49Z 1994 0031-9007 urn:nbn:de:hebis:34-2008062322166 http://hdl.handle.net/123456789/2008062322166 711412 bytes application/pdf eng American Physical Society Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ 530 Theory for Optical Absorption in Small Clusters: Dependence on Atomic Structure and Cluster Size Aufsatz We present a theory which permits for the first time a detailed analysis of the dependence of the absorption spectrum on atomic structure and cluster size. Thus, we determine the development of the collective excitations in small clusters and show that their broadening depends sensitively on the tomic structure, in particular at the surface. Results for Hg_n^+ clusters show that the plasmon energy is close to its jellium value in the case of spherical-like structures, but is in general between w_p/ \wurzel{3} and w_p/ \wurzel{2} for compact clusters. A particular success of our theory is the identification of the excitations contributing to the absorption peaks. open access Phys. Rev. Lett. 72, 3969 (1994) Grabowski, S. Garcia, Martin E. Bennemann, K. H. Extern 36.40.+d 71.45.Gm </resource>
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