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MA: Fachverband Magnetismus

MA 37: Non-Skyrmionic Magnetic Textures

MA 37.7: Vortrag

Mittwoch, 11. März 2026, 16:30–16:45, POT/0351

Magnetization dynamics of twists in (anti-)ferromagnetic insulators — Patricia Oehrl^1,2, Mathew James³, Luca Maranzana⁴, Andreas Bauer², Denis Mettus², Christian Pfleiderer², Christian Back², Sergey Artyukhin⁴, Hans Huebl^1,2, and •Aisha Aqeel³ — ¹Walther-Meißner-Institut, 85748 Garching, Germany — ²Technical University of Munich, 85748 Garching, Germany — ³University of Augsburg, 86159 Augsburg, Germany — ⁴Quantum Materials Theory, Italian Institute of Technology, Via Morego 30, Genoa, Italy

Magnetic insulators hosting noncollinear spin textures display a remarkable variety of static and dynamic phenomena. In chiral systems such as Cu2OSeO3, the lack of inversion symmetry gives rise to helices and skyrmions stabilized by Dzyaloshinskii-Moriya interactions [1]. By contrast, in centrosymmetric compounds like CuSeO3, complex antiferromagnetic spiral states can emerge purely from competing symmetric exchange interactions, providing an intriguing platform to explore magnetism without intrinsic chirality. In this talk, I will present our preliminary results on dynamic excitation of these textures in chiral Cu2OSeO3 and centrosymmetric CuSeO3 magnets using magnetic resonance spectroscopy [2].

References: [1] S. Mehboodi, V. Ukleev, C. Luo, R. Abrudan, F. Radu, C. H. Back, A. Aqeel, Sci. Technol. Adv. Mater 26(1) 2532366 (2025) [2] Aisha Aqeel, Jan Sahliger,... Christian H Back, Phys. Rev. Lett. 126, 017202 (2021)

Keywords: Spiral; magnetic resonance spectroscopy; Frustrated magnets; chiral magnets