Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 38: Spintronics
O 38.6: Vortrag
Dienstag, 8. März 2016, 15:15–15:30, S051
Ab initio calculation of SPLEED patterns for the Ir(111) surface — •Stephan Borek1, Jürgen Braun1, Jan Minár1,2, Dima Kutnyakhov3, Hans-Joachim Elmers3, Gerd Schönhense3, and Hubert Ebert1 — 1Ludwig-Maximilians-Universität München — 2University of West Bohemia Pilsen — 3Johannes-Gutenberg-Universität Mainz
Recent investigations have shown that the Ir(100)
surface is a promising candidate for spin-filter
application [1]. In our studies we investigated the
Ir(111) surface and its applicability for spin-filter
purposes. Accordingly, diffraction patterns
of spin-polarized electrons scattered on the surface
have been calculated for
a wide range of polar angles and kinetic energies.
The calculated diffraction patterns show more suitable
working points in comparison to the standard Ir(100) surface
extending the spin-filter versatility. In addition
we looked for deviations of the scattering plane
from high symmetry directions
Γ M and
Γ K
in the surface Brillouin zone
and its impact on the diffraction patterns. To
complement the SPLEED calculations we calculated
angle-resolved photoemission spectra to characterize
the underlying electronic structure.
D. Kutnyakhov et al. Ultramicroscopy 130, 63 (2013)