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MA: Fachverband Magnetismus

MA 7: Poster Magnetism I

MA 7.65: Poster

Montag, 9. März 2026, 09:30–12:30, P2

Correlation of in-situ Hall measurements with LTEM on Fe/Gd multilayers — •Sebastian Beckert¹, Sebastian Schneider¹, Joe Sunny², Manfred Albrecht², Bernd Rellinghaus¹, and Darius Pohl¹ — ¹DCN, cfaed, TU Dresden, Dresden, Germany — ²Institute of Physics, University of Augsburg, Augsburg, Germany

Topologically protected skyrmions are promising information carriers for next generation memory devices, because they can be electrically manipulated and detected, e.g., through their Hall signatures. Sputtered Fe/Gd multilayers host skyrmions at room temperature, making them an ideal model system for exploring the correlation between skyrmion formation and the topological Hall effect (THE) [1].

Building on prior in-situ correlations of Hall responses and Lorentz transmission electron microscopy (LTEM) imaging in antiskyrmion hosting materials [2], we combine simultaneous Hall-voltage measurements with LTEM imaging of the magnetic state of sputtered Fe/Gd multilayers. These experiments aim to disentangle the relationship between skyrmion presence and the Hall signal, which are typically probed independently.

[1] M. Heigl et al., Nat. Commun. 12, 2611 (2021)

[2] A. Thomas et al., Small Methods 9, 2401875 (2025)

Keywords: TEM; LTEM; THE