SKM 2023 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 40: Poster Magnetism II
MA 40.53: Poster
Donnerstag, 30. März 2023, 14:00–16:00, P2/EG
Temperature dependent μ-ARPES of the exfoliated zigzag-type intralayer antiferromagnet FePS3 — •B. Pestka1, J. Strasdas1, A. K. Budniak2, D. Baranowski3, N. Leuth1, H. Boban3, M. Liebmann1, V. Feyer3, L. Pulcinski3, E. Lifshitz2, and M. Morgenstern1 — 1II Institute of Physics B and JARA-FIT, RWTH Aachen University, Germany — 2Schulich Faculty of Chemistry, Solid State Institute of Thechnology, Haifa 3200003, Israel — 3Forschungszentrum Jülich, Peter Grünberg Institute (PGI-6), Germany
The exfoliable intralayer antiferromagnets MPX3 (M: transition metal, P: phosphorus, X: chalcogenide) provide a multitude of spin arrangements such as Néel-, stripe- and zigzag-type. However, the electronic band structure of these semiconductors has barely been probed. Here, we provide micro-scale angle-resolved photoelectron spectroscopy (μ-ARPES) of the exfoliated intralayer antiferromagnet FePS3 above and below the Néel temperature TN. The material exhibits the zig-zag-type spin arrangement consisting of ferromagnetic zig-zag lines that are mutually coupled antiferromagnetically. We find changes of some of the probed bands across TN. Additionally, the changing bands differ in the different Gamma-K directions, if probed below TN, which is likely related to the selected orientation of the ferromagnetic zig-zag stripes. First low-temperature scanning tunneling spectroscopy results obtained with a Cr tip are also presented. The novel access to the electronic band structure will contribute to a detailed understanding of 2D antiferromagnets.