Regensburg 2010 – scientific programme
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O: Fachverband Oberflächenphysik
O 45: Electronic structure I
O 45.2: Talk
Wednesday, March 24, 2010, 10:45–11:00, H33
Valence band photoemission NixPd1−x alloy films on Cu3Au(100) — •Matthias Gulik1,2, Lukasz Plucinski1, and Claus M. Schneider1 — 1Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428 Jülich, Germany — 2Technische Universität Dortmund, Maria-Goeppert-Mayer- Str. 2, D-44221 Dortmund, Germany
Spin and angle-resolved photoemission are important experimental methods to investigate the electronic band structure of crystalline materials. Spin-integrated measurements can be performed relatively fast with a high energy and momentum resolution, whereas spin-resolved measurements reveal further information about the band structure.
On the compound of NixPd1−x/Cu3Au(100) we will investigate the electronic and magnetic properties with regard to the thickness and the composition of the ultrathin NixPd1−x layer. The composition differences should be reflected in an inverse spin-reorientation transition. Furthermore we will compare the measured spectra to the theoretical calculations of the band structure.
The measurement takes place at Beamline 5 at DELTA, Dortmund, with an
unique detector setup. We can acquire 2-dimensional angle resolved data
for band mapping and spin resolved one-dimensional data
quasi-simultaneously. This will provide us with high resolution band
structure spectra and images as well as spin resolved valence band
spectra. Our samples are prepared in-situ by e-beam evaporation and
characterized by LEED and Auger spectroscopy.