Berlin 2024 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 46: Poster II
MA 46.11: Poster
Donnerstag, 21. März 2024, 15:00–18:00, Poster C
Skyrmion dynamics in the stripe domain phase — •Omer Fetai1, Lisa-Marie Kern2, Ross Knapman1,3,4, Maike L. Auer2, Bastian Pfau2, and Karin Everschor-Sitte1,4 — 1TWIST Group, University of Duisburg-Essen, Duisburg, Germany — 2Max-Born-Institut, Berlin, Germany — 3Johannes Gutenberg University Mainz, Mainz, Germany — 4Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, Germany
The skyrmion Hall effect, which deflects skyrmions from the direction of the driving electric current, is a major challenge for racetrack-like applications. Guiding the skyrmion motion and suppressing the skyrmion Hall effect is possible by modifying the energy landscape of the skyrmion-carrying racetrack. This can, for example, be achieved by ion irradiation [1], where the material properties are engineered. Alternatively, skyrmions can be embedded in a stripe domain phase such that the magnetic texture itself induces tracks along which the skyrmions move straight [2-4]. We combine the ideas of skyrmions embedded in stripe domain phases with tailored properties and investigate the skyrmion dynamics under the influence of Spin-Orbit-Torques. [1] Kern et al., Nano Lett. 2022, 22, 10, 4028*4035 [2] Müller, et al. Phys. Rev. Lett. 119, 137201 (2017) [3] Knapman et al., J. Phys. D: Appl. Phys. 54 404003 (2021) [4] Song et al., arXiv:2212.08991 (2022)
Keywords: H-Shaped Skyrmions; Interstitial Skyrmions; Helical Phase; Spin-Orbit Torque; Skyrmion Hall effect