Decay of Hybridized Electronic States of a Na Cluster on Cu(001)

Y. Pavlyukh, J. Berakdar, and W. Hübner
Phys. Rev. Lett. 100, 116103 – Published 21 March 2008

Abstract

The electronic properties of a Na9+ cluster are markedly changed when deposited on a Cu(001) surface. Particularly, the lifetime of the (hybridized) single-particle electronic states are drastically enhanced indicating a change in electronic correlations upon absorption. To capture this effect, we developed a Green’s function approach based on the configuration interaction technique. The calculated lifetimes (16.5 to 33 fs) of excited electronic states are in line with experimental observations. Our new method demonstrates the feasibility of accounting accurately for electronic correlation in large, nonperiodic systems.

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  • Received 12 October 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.116103

©2008 American Physical Society

Authors & Affiliations

Y. Pavlyukh* and J. Berakdar

  • Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle, Germany

W. Hübner

  • Department of Physics, Kaiserslautern University of Technology, Box 3049, 67653, Kaiserslautern, Germany

  • *yaroslav.pavlyukh@physik.uni-halle.de

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Issue

Vol. 100, Iss. 11 — 21 March 2008

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