Dresden 2026 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 52: Poster Magnetism III

MA 52.37: Poster

Donnerstag, 12. März 2026, 15:00–17:00, P4

Emergent electromagnetic inductance of nontrivial magnetic textures in SrRuO₃/SrIrO₃ bilyers — •Ludwig Scheuchenpflug¹, Sebastian Esser², Robert Gruhl¹, Max Hirschberger^2,3, and Philipp Gegenwart¹ — ¹Universität Augsburg, Lehrstuhl für Experimentalphysik VI — ²Department of Applied Physics, University of Tokyo, Japan — ³RIKEN Center for Emergent Matter Science, Japan

Emergent electromagnetic induction (EEMI) by current-driven spin dynamics was proposed and observed in the spin helix magnet Gd₃Ru₄Al₁₂ [1], where the (current-nonlinear) imaginary impedance at kHz frequency was associated with the motion of helical spin structures.

To explore the possibility of EEMI arising from current-driven dynamics of nontrivial magnetic structures, we fabricated and microstructured epitaxial thin film bilayers of ferromagnetic SrRuO₃ and paramagnetic SrIrO₃ on STO. This bilayer system is suspected to host DMI-stabilized Néel-skyrmions, indicated by the topological Hall-effect (THE) [2]. We observe in AC-measurements a large and current-linear imaginary impedance at low temperatures over broad current density and frequency ranges, signaling the EEMI of nontrivial textures.

[1] Naoto Nagaosa, Jpn. J. Appl. Phys. (2019) 58 120909, Yokouchi et al., Nature 586, 232 (2020).

[2] J. Matsuno et al., Science Adv. 2 (2016) e1600304, S. Esser et al., Phys. Rev. B 103 (2021) 214430.

Keywords: Skyrmion; Emergent electromagnetic induction; heterostructures; transition metal oxides