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MA: Fachverband Magnetismus

MA 44: Non-Skyrmionic Magnetic Textures

MA 44.8: Talk

Thursday, March 21, 2024, 17:15–17:30, EB 301

Three-dimensional reconstruction, magnetization statics and dynamics in innovative curved nanoarchitectures. — •Jose A. Fernandez-Roldan1, Olha Bezsmertna1, Rui Xu1, Oleksii M. Volkov1, Oleksandr V. Pylypovskyi1,2, Ondřej Wojewoda3, Florian Kronast4, Claas Abert5, Dieter Suess5, Michal Urbǎnek3, Jürgen Fassbender1, and Denys Makarov11Helmholtz-Zentrum Dresden-Rossendorf, Germany — 2Kyiv Academic University,Ukraine — 3CEITEC BUT, Brno University of Technology, Czech Republic — 4Helmholtz-Zentrum Berlin für Materialien und Energie, Germany — 5University of Vienna, Austria

Recent efforts have focused on exploring three-dimensional (3D) and curved magnetic nanostructures for nanoelectronics, sensorics, and computing, especially emphasizing spin textures and dynamics [1, 2]. However, studies on lattices of nanoarchitectures based on curved 3D elements are limited. Here we explore the properties of innovative, highly regular FeNi lattices of complex geometries [3]. A meticulous 3D reconstruction of the geometry coupled with modelling confirm that this system enables topologically non-trivial magnetic excitations in a high number. Dynamical measurements in combination with modelling confirm a switchable gap and local non-linear excitations. Overall, this system collects unique properties for becoming a captivating platform for advanced technologies in nanoelectronics and computing.
1. D. Makarov et al., Adv.Mater. 34(3), 2101758 (2022).
2. J. A. Fernandez-Roldan et al., APL Materials 10, 111101 (2022).
3. R. Xu, et al., Nat Commun 13, 2435 (2022).

Keywords: Three-dimensional nanomagnetism; curvature; nanoarchitecture; reconstruction; micromagnetic modelling

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