https://doi.org/10.1140/epjd/e2007-00248-8
Mapping the femtosecond dynamics of supported clusters with nanometer resolution
1
Department of Physics, TU Kaiserslautern, 67663 Kaiserslautern, Germany
2
Experimentelle Physik I, Universität Dortmund, 44221 Dortmund, Germany
3
Institut für Experimentelle und Angewandte Physik, Universität Kiel, 24118 Kiel, Germany
Corresponding author: a rohmer@physik.uni-kl.de
Received:
7
February
2007
Revised:
20
June
2007
Published online:
1
August
2007
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
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007
