Dresden 2026 – scientific programme
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MA: Fachverband Magnetismus
MA 7: Poster Magnetism I
MA 7.67: Poster
Monday, March 9, 2026, 09:30–12:30, P2
Coupled and decoupled topological textures in van der Waals heterostructure — •Sourav Chowdhury1, Daniel Metternich2, Simon Gaebel2, Chithra Sharma3, Jayjit Dey1, Victor Deinhart2, Tim Butcher2, Michael Schneider2, Josefin Fuchs2, Bastian Pfau2, and Moritz Hoesch1 — 1Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany — 2Max-Born-Institut (MBI), Berlin, Germany — 3University of Hamburg, Hamburg, Germany
Topological nanodomain spin textures in two-dimensional (2D) van der Waals (vdW) magnets are attracting increasing interest for next-generation spintronic technologies, offering pathways to ultradense data storage, energy-efficient operation, and unconventional data processing architectures [1]. Using element-specific X-ray imaging, we visualize a variety of topological spin textures in an Fe3GeTe2/CrGeTe3 heterostructure and directly resolve their interlayer behavior. We find that nanodomains in the two layers are strongly coupled under certain conditions, while within a specific magnetic-field window, the domains become decoupled and evolve independently. This transition from coupled to decoupled topological textures can be understood in terms of distinct magnetic anisotropy contributions in the two layers, arising from interlayer interactions rather than solely from the properties of the individual materials. [1] K. Chang et al., Science 2016, 353, 274.
Keywords: magnetic topology; 2D van der Waal ferromagnet; Magnetic imaging; Skyrmions; Fourier transform holography