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O: Oberflächenphysik

O 41: Electronic structure III

O 41.10: Talk

Thursday, March 30, 2006, 17:15–17:30, WIL B321

Scattering of electrons in image-potential bands on Cu(001) by Co-Adatoms — •Michaela Hirschmann, Klaus Boger, and Thomas Fauster — Lehrstuhl für Festkörperphysik, Universität Erlangen-Nürnberg, Staudtstr. 7, 91058 Erlangen

Energy-, time- and angle-resolved two-photon photoemission has been used to study the various scattering processes induced by adsorbate atoms. We have examined the dynamics of electrons in image-potential states on the Cu(001) surface covered by statistically distributed Co-Adatoms.
From the measured data the scattering probabilities of the inelastic and quasielastic, interband and intraband scattering processes can be determined. The results are discussed in relation to previous work for Cu on Cu(001) [1,2].

[1] K. Boger, M. Weinelt, Th. Fauster, Phys. Rev. Lett. 92 (2004) 126803

[2] K. Boger, Th. Fauster, M. Weinelt, New J. Phys. 7 (2005) 110