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TT: Fachverband Tiefe Temperaturen

TT 76: Focus Session: Curvilinear magnetism: Magnetics with nanoscale curved geometries (joint session MA/TT)

Thursday, March 12, 2026, 09:30–13:00, POT/0151

The behaviour of any physical system is determined by the order parameter whose distribution is governed by the geometry and topology of the physical space of the object, in particular its dimensionality and curvature. Specifically, spin textures, static and dynamic magnetic responses become sensitive to bends and twists in physical space. In this respect, curvature effects emerged as a novel tool to tailor magnetic properties and responses relying on geometric deformations. In magnetism, coupling between geometry of a magnet and magnetic order parameter brings about novel responses of curved thin films, nanowires and nanoparticles and enforces topological constraints on the number and type of magnetic solitons living in a curved space. Curvatures can force a geometry-driven local interactions like Dzyaloshinskii-Moriya interaction (DMI) and anisotropy as well as novel non-local chiral symmetry breaking effects, which were confirmed experimentally using electron holography studies of magnetic cap-shaped structures. Advances in experimental techniques (fabrication and tomographic characterization) allow validating theoretically predicted effects and apply them for functional devices as was demonstrated with geometrically twisted 3D racetracks. Recent highlights of the community include experimental proof of curvature stabilised skyrmions, explorations of curvilinear altermagnets, tailoring magnetic solitons in curvilinear 2D magnets, curvilinear magnetoelectrics, use of curvilinear magnetic architectures to tune superconducting transport, and magnetoionic manipulation of magnetic states in nanostructures to name just a few representative topics, which will be covered at the focused symposium.

Organizers: Denys Makarov, d.makarov@hzdr.de; Paola Gentile, paola.gentile@spin.cnr.it

	09:30	TT 76.1	Invited Talk: 2D and 3D racetracks: Interplay of geometric and magnetic chiralities — •Stuart Parkin
	10:00	TT 76.2	Invited Talk: Combined MFM/KPFM at the Ultimate Sensitivity Limit for Probing Curvature-Engineered Micromagnetic States — •Emily Darwin, Reshma Peremadathil Pradeep, Luca Berchialla, Daniel Rotthardt, Ales Hrabec, and Hans Hug
	10:30	TT 76.3	Invited Talk: Curvilinear magnetism in superconducting spintronics — •Sol Jacobsen
	11:00		15 min break
	11:15	TT 76.4	Invited Talk: Advanced Control of Magnetic Nanostructures via Metasurface Engineering and Voltage-Driven Functionalities — •Anna Palau
	11:45	TT 76.5	Invited Talk: Magnetic tomography of noncollinear spin textures in curvilinear geometries — •Sandra Ruiz-Gomez
	12:15	TT 76.6	Transferred magnetic nanomembranes for curvilinear magnetism and spintronics — •Olha Bezsmertna, Oleksandr Pylypovskyi, Rui Xu, Mykola Vinnichenko, Andrea Sorrentino, Daniel Wolf, Axel Lubk, Peter Fischer, and Denys Makarov
	12:30	TT 76.7	Magnetic solitons in spherical maghemite nanoshells — •Oleksandr V. Pylypovskyi, Gaspare Varvaro, Davide Peddis, Priyanka Mishra, Carmine Autieri, Filipp N. Rybakov, Denis D. Sheka, and Denys Makarov
	12:45	TT 76.8	Coherent Spin Waves in Curved Ferromagnetic Nanocaps of a 3D-printed Magnonic Crystal — •Kilian Lenz, Huixin Guo, Mateusz Golebiewski, Ryszard Narkowicz, Jürgen Lindner, Maciej Krawczyk, and Dirk Grundler