SKM 2023 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 23: Poster Magnetism I
MA 23.12: Poster
Dienstag, 28. März 2023, 17:00–19:00, P1
Static and dynamical properties of magnetic (bi-)skyrmions in the absence of Dzyaloshinskii-Moriya interaction — •David Eilmsteiner1, Levan Chotorlishvili2, Xi-guang Wang3, Paweł Buczek4, and Arthur Ernst1 — 1Johannes Kepler University Linz, Linz, Austria — 2Rzeszów University of Technology, Rzeszów, Poland — 3Central South University, Changsha , China — 4Hamburg University of Applied Sciences, Hamburg, Germany
The interest in topologically non-trivial states in magnetic materials, for instance magnetic skyrmions, arises not only from the fascinating connection between the mathematical concept of topology and phenomena observable in the lab, but also from possible future applications of those configurations in technology. The main obstacle towards a future technological applicability is the limited range of materials in which skyrmions intrinsically occur – for instance, Dzyaloshinskii-Moriya interaction is usually required. However, a sophisticated design of multi-layer systems can help to circumvent this constraint. My poster will discuss two such set-ups. The one demonstrates how a circular nanodot in combination with a switching magnetic field can help to nucleate a magnetic skyrmion. The other studies the motion of a bi-skyrmion bound to a vortex-domain wall. In the latter case, we not only found the, for technological application highly favorable, disappearance of the skyrmion Hall effect, we also observed a chirality dependence of the propagation velocity.