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The European Physical Journal D

, Volume 45, Issue 3, pp 491–499 | Cite as

Mapping the femtosecond dynamics of supported clusters with nanometer resolution

  • M. RohmerEmail author
  • F. Ghaleh
  • M. Aeschlimann
  • M. Bauer
  • H. Hövel
Electronic and Optical Properties, Chemistry

Abstract.

In this paper we present a combined STM, SEM and time-resolved PEEM study of silver clusters on a nano-patterned HOPG-substrate, exhibiting areas of different defect type and defect densities. The areas show small but distinct differences in the femtosecond dynamics associated with electronic excitations in the clusters. We assign these differences to variations in the cluster size distribution and variations in the cluster-substrate interaction as governed by the bonding to the different defect types.

PACS.

73.22.Lp Collective excitations 79.60.Jv Interfaces; heterostructures; nanostructures 61.46.+w Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • M. Rohmer
    • 1
    Email author
  • F. Ghaleh
    • 2
  • M. Aeschlimann
    • 1
  • M. Bauer
    • 3
  • H. Hövel
    • 2
  1. 1.Department of PhysicsKaiserslauternGermany
  2. 2.Experimentelle Physik I, Universität DortmundDortmundGermany
  3. 3.Institut für Experimentelle und Angewandte Physik, Universität KielKielGermany

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