Dresden 2017 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 64: Poster 1
MA 64.5: Poster
Freitag, 24. März 2017, 09:30–13:00, P2-EG
Investigation of the Influence of the Skyrmion Radius on Real-Time Skyrmion Trajectories and the Skyrmion Hall Effect — •P. Bassirian1, K. Litzius1,2, I. Lemesh3, B. Krüger1, L. Caretta3, K. Richter1, F. Büttner3, J. Förster2, R. M. Reeve1, M. Weigand2, I. Bykova2, H. Stoll2, G. Schütz2, G. S. D. Beach3, and M. Kläui1 — 1Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany — 2Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany — 3Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Magnetic skyrmions are promising candidates for new data storage and information processing devices, due to their topologically stabilized spin structure and their recently demonstrated efficient spin orbit torque driven dynamics. Recent experimental studies have shown a deviation of the skyrmion trajectories with respect to the direction of the current flow [1,2]. This deviation angle between motion direction and current direction is quantified as the skyrmion Hall angle (SHA). We have observed a dependence of the SHA on the size of the skyrmion [2,3], which allows us to manipulate the skyrmion trajectory by engineering the skyrmion size. We investigate the response of the skyrmion radius on an external magnetic field to obtain the influence of materials properties and skyrmion size on the skyrmion Hall effect.
[1] Jiang, W. et al. Nat. Phys. (online) DOI:10.1038/nphys3883 (2016). [2] Litzius, K. et al., Nature Physics (in press 2016), arxiv:1608.07216. [3] Woo, S. et al. Nat. Mater. 15, 501-506 (2016).