61 citations · 160 across the 11 of their papers we have counts for
11 papers
Transition from Optically Excited to Intrinsic Spin Polarization in WSe
Sebastian Hedwig, Gregor Zinke, Jürgen Braun +6
Layered 2D van der Waals materials, such as transition metal dichalcogenides, are promising for nanoscale spintronic and optoelectronic applications. Harnessing their full potentia…
Layered Multiple Scattering Approach to Hard X-ray Photoelectron Diffraction: Theory and Application
Trung-Phuc Vo, Olena Tkach, Sylvain Tricot +10
Photoelectron diffraction (PED) is a powerful and essential experimental technique for resolving the structure of surfaces with sub-angstrom resolution. In the high energy regime,…
Unveiling the physics of the spin-orbit coupling at the surface of a model topological insulator: from theory to experiments
Denny Puntel, Simone Peli, Wibke Bronsch +4
Spin-orbit interaction affects the band structure of topological insulators beyond the opening of an inverted gap in the bulk bands, and the understanding of its effects on the sur…
Surface resonance of the Heusler half metal Co2MnSi probed by SX-ARPES
Christian Lidig, Jan Minár, Jürgen Braun +6
Heusler compounds are promising materials for spintronics with adjustable electronic properties including 100% spin polarization at the Fermi energy. We investigate the electronic…
Vectorial spin-polarization detection in multichannel spin-resolved photoemission spectroscopy using an Ir(001) imaging spin filter
Erik D. Schaefer, Stephan Borek, Jürgen Braun +5
We report on spin- and angular resolved photoemission spectroscopy using a high-resolution imaging spin filter based on a large Ir(001) crystal enhancing the effective figure of me…
One-step theory of two-photon photoemission
J. Braun, R. Rausch, M. Potthoff +1
A theoretical frame for two-photon photoemission is derived from the general theory of pump-probe photoemission, assuming that not only the probe but also the pump pulse is suffici…
Spin Mapping of Surface and Bulk Rashba States in Ferroelectric a-GeTe(111) Films
H. J. Elmers, R. Wallauer, M. Liebmann +16
A comprehensive mapping of the spin polarization of the electronic bands in ferroelectric a-GeTe(111) films has been performed using a time-of-flight momentum microscope equipped w…
Fermi surface of three-dimensional La1-xSrxMnO3 explored by soft-X-ray ARPES: Rhombohedral lattice distortion and its effect on magnetoresistance
L. L. Lev, J. Krempaský, U. Staub +12
Electronic structure of the three-dimensional colossal magnetoresistive perovskite La1-xSrxMnO3 has been established using soft-X-ray ARPES with its intrinsically sharp definition…
Ab initio calculation of Spin-Polarized Low-Energy Electron Diffraction Pattern for the systems Fe(001) and Fe(001)-p(1x1)-O
S. Borek, J. Braun, J. Minár +1
The construction of a multi-channel vector spin polarimeter requires the development of a new detector type, which works as a spin polarizing mirror with high reflectivity and asym…
Surface spin polarization of the non-stoichiometric Heusler compound Co2Mn(alpha)Si
Jan-Peter Wüstenberg, Mirko Cinchetti, Martin Aeschlimann +6
Using a combined approach of spin-resolved photoemission spectroscopy, band structure and photoemission calculations we investigate the influence of bulk defects and surface states…
Ab-initio description of the magnetic shape anisotropy due to the Breit interaction
S. Bornemann, J. Minar, J. Braun +2
A quantum-mechanical description of the magnetic shape anisotropy, that is usually ascribed to the classical magnetic dipole-dipole interaction, has been developed. This is achieve…