6 papers
Magneto-optical evidence for single-crystal-like magnetic switching of epitaxial antiferromagnetic LaFeO3 films
A. Rieche, W. Hoppe, C. Körner +11
Strained epitaxial films of the antiferromagnetic orthoferrite LaFeO3 offer a promising platform for antiferromagnetic spintronics, yet their magnetic switching behavior and domain…
Host-atom-driven transformation of a honeycomb oxide into a dodecagonal quasicrystal
Martin Haller, Julia Hewelt, V. Y. M. Rajesh Chirala +5
Dodecagonal oxide quasicrystals (OQCs) have so far been limited to a few elemental systems, with no general formation mechanism established. Here, we demonstrate a versatile approa…
Improved imaging of magnetic domains with a photoelectron emission microscope by utilizing symmetry and momentum selection
F. O. Schumann, M. Paleschke, J. Henk +2
Imaging of magnetic domains with a photoelectron emission microscope operated with photon energies in the threshold regime often suffers from low contrast. In this work we show by…
Ultrafast electron dynamics upon above band-gap excitation in epitaxial LaFeO(001) thin films
Friederike Elisa Wührl, Antonia Rieche, Anne Oelschläger +2
Strong electron correlations in perovskite oxides give rise to rich and often unexpected electronic phenomena. In this study, we present a comprehensive surface-science investigati…
Time-resolved electron dynamics in antiferromagnetic CoO(001) thin films
Mathias Augstein, Friederike Wührl, Konrad Gillmeister +2
Ultrathin antiferromagnetic CoO(001)-(1x1) films of 2 and 4 monolayers (ML) on Ag(001) are investigated by time- and angle-resolved two-photon photoelectron (2PPE) spectroscopy. Pu…
Enhanced magnetic dichroism in darkfield UV photoemission electron microscopy
Maximilian Paleschke, David Huber, Friederike Wührl +4
Photoemission electron microscopy (PEEM) has evolved into an indispensable tool for structural and magnetic characterization of surfaces at the nanometer scale. In strong contrast…