Dresden 2020 – scientific programme
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MA: Fachverband Magnetismus
MA 59: Posters Magnetism III
MA 59.7: Poster
Friday, March 20, 2020, 09:00–12:00, P2/EG
Production of Magnetic Textures in Different Dimensions — •Ross J. Knapman1, Davi R. Rodrigues1, Venkata Krishna Bharadwaj1, Jairo Sinova1,2, and Karin Evershor-Sitte1 — 1Institut für Physik, Johannes Gutenberg-Universität Mainz, Mainz, Germany — 2Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
Current-induced forces can be exploited to create magnetic textures. In a 1D wire, this mechanism allows for the periodic production of domain walls [1-3] and in 2D it allows for the shedding of skyrmion-antiskyrmion pairs [4-6]. In 1D, it is possible to obtain an analytical solution to the problem which agrees well with micromagnetic simulations. In 2D there are more degrees of freedom. Within numerical simulations, we found that the degree of elasticity in the shedding process results in a change in the periodicity of the shedding, going beyond the previous results. We are constructing a model to capture this effect. Furthermore, we aim to extend our work to the investigation of the shedding of 3D magnetic textures from localised impurities. For this, we will investigate quantitative aspects such as the dependence of critical current and shedding frequency on the nature of the impurity, as well as qualitative aspects such as the nature of the objects shed.
[1] J. Shibata, et. al., PRL 94, 076601 (2005) [2] M. Sitte et. al., Phys. Rev. B 94, 064422 (2016) [3] T. P. Dao et. al., Nano Lett. 19, 5930-5937 (2019) [4] K. Everschor-Sitte, et. al., New J. Phys. 19, 092001 (2017) [5] M. Stier, et. al., PRL 118, 267203 (2017) [6] F. Büttner et. al., Nat. Nanotech. 12, 1040-1044 (2017)