Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 48: Poster Session II

MA 48.61: Poster

Donnerstag, 10. März 2016, 15:00–18:00, Poster B1

Current-Driven Dynamics of Magnetic Skyrmions in Low Pinning Multilayer Structures at Room Temperature — •Kai Litzius1,2,3, Ivan Lemesh4, Lucas Caretta4, Kornel Richter1, Benjamin Krüger1, Markus Weigand3, Hermann Stoll3, Gisela Schütz3, Geoffrey S. D. Beach4, and Mathias Kläui1,21Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany — 2Graduate School of Excellence Materials Science in Mainz, Staudinger Weg 9, 55128 Mainz, Germany — 3Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany — 4Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Magnetic skyrmions are topologically stabilized nanoscale magnetic configurations that are promising for future spintronic devices. Their topology stabilizes them against a continuous deformation into the uniform state and leads to novel physical effects.

Skyrmions have been first predicted in certain magnetic materials due to the Dzyaloshinskii-Moriya interaction (DMI) that favors a chiral spin canting. The interplay between the DMI and the exchange interaction finally gives rise to the creation of skyrmions.

Within the last years, skyrmions have been studied extensively, however no direct observation of real time skyrmion dynamics has been performed so far in for applications relevant geometries. In this work, we report the time-resolved pump-probe observation of stable magnetic skyrmions at room temperature in thin film devices by scanning transmission X-ray microscopy.

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