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Regensburg 2016 – scientific programme

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O: Fachverband Oberflächenphysik

O 38: Spintronics

O 38.6: Talk

Tuesday, March 8, 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 Ebert11Ludwig-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)

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