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O: Fachverband Oberflächenphysik
O 36: Poster Session II (Metals; Nanostructures at surfaces; Surface or interface magnetism; Spin-Orbit Interaction at Surfaces; Electron and spin dynamics; Surface dynamics; Methods; Theory and computation of electronic structure)
O 36.92: Poster
Tuesday, March 15, 2011, 18:30–22:00, P4
Two Photon Photoemission Studies of FeO-films on ZnO(0001) — •Stephan Hilgenfeldt and Michael Bauer — Institut für Experimentelle und Angewandte Physik, Universität Kiel, 24098 Kiel, Germany
We investigated FeO films prepared on a ZnO(0001) substrate by two photon photoemission (2PPE). The FeO was produced by epitaxial growth of Fe on ZnO in ultra high vacuum and a subsequent annealing of the films to 670 K. In the 2PPE-data we were able to identify a distinct spectral feature of FeO from an unoccupied state at a binding energy of E−EF=+2.5 eV exhibiting a clear parabolic dispersion in k∥. The nature and the properties of this electronic band will be discussed under consideration of additional time resolved 2PPE data.