Regensburg 2013 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 58: Poster Session III (Solid-liquid interfaces; Scanning probe and other methods; Electronic structure theory; Spin-orbit interaction)
O 58.14: Poster
Mittwoch, 13. März 2013, 18:15–21:45, Poster B1
Photon energy and polarization dependent photoemission from Ag(001) using a laboratory light source with time-of-flight setup — •Michael Huth1, Cheng-Tien Chiang1,2, Jürgen Kirschner1, and Wolf Widdra1,2 — 1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120, Halle(Saale), Germany — 2Institute of Physics, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 3, D-06120, Halle(Saale), Germany
We use a high-harmonic generation light source for time-of-flight angle-resolved photoemission spectroscopy at 4 MHz on Ag(001). With 17 eV and 20 eV photon energy we observed dispersive features of the bulk electronic structure starting from 7 eV below the Fermi level. The dispersion depends on the chosen linear polarization of the incident light due to symmetry selection rules. Our results demonstrate efficient application of momentum-resolved high-repetition rate time-of-flight spectroscopy [1].
[1] C.-T. Chiang, A. Blättermann, M. Huth, J. Kirschner, and W. Widdra, Appl. Phys. Lett. 101, 071116 (2012)