SKM 2023 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 40: Poster Magnetism II
MA 40.62: Poster
Donnerstag, 30. März 2023, 14:00–16:00, P2/EG
Influence of disorder and multi-magnon processes on the magnonic properties of ultrathin metallic ferromagnets — •Sebastian Paischer1, Arthur Ernst1, Igor Maznichenko2, David Eilmsteiner1, Khalil Zakeri3, and Pawel Buczek4 — 1Johannes Kepler University, Linz, Austria — 2Martin-Luther-Universität Halle-Wittenberg, Halle, Germany — 3Karlsruhe Intitute of Technology, Karlsruhe, Germany — 4Hamburg University of Applied Sciences, Hamburg, Germany
Understanding the processes behind the excitation and relaxation of spin excitations in low-dimensional magnetic structures is one of the most intriguing research directions in solid-state physics. A detailed knowledge of the fundamental mechanisms involved in such processes is the key to understanding many different phenomena like ultrafast magnetization reversal. In this poster session we compare different magnon damping mechanisms in ultrathin metallic films. While the Landau-damping is the most dominant channel, we show that a significant contribution of the damping originates from substitutional disorder. Also the influence of multi-magnon processes on the magnonic properties of these materials will be discussed.