Workshop 2025: Three-dimensional gyroid and scaffold-like networks: Unveiling a new surface localization mechanism of ferromagnetic resonance modes in complex nanoarchitectures

Session Information

Location: Lecture room F3213 - 08
Day: Wednesday, 14 May
Time: 18:00 - 19:00
Chairperson: -

Presentation Details

Presentation Type: Poster presentation
Title: Three-dimensional gyroid and scaffold-like networks: Unveiling a new surface localization mechanism of ferromagnetic resonance modes in complex nanoarchitectures
Abstract: We present a comprehensive study on the localization of ferromagnetic resonance (FMR) modes in three-dimensional nanoarchitectures, focusing on scaffold-like nanorods and gyroids – periodic chiral structures defined by their distinctive triple-junctions. These architectures extend the landscape of magnonics beyond conventional planar geometries, offering unique features such as intricate connectivity, large surface-area-to-volume ratios, and inherent curvature. By exploring how FMR modes manifest under different external magnetic field orientations, our work bridges multiple scientific disciplines interested in topological textures, from condensed-matter physics and materials science to applied mathematics and engineering.
At the core of this investigation is a set of advanced micromagnetic simulations that capture both dipolar and exchange interactions within these complex 3D systems. Although demagnetizing fields are recognized as crucial for determining the overall resonance response, they alone do not account for the subtle displacement and specific surface localization of the observed FMR modes. Instead, our results indicate that exchange coupling plays a decisive role. More precisely, field-aligned nanorods enhance the magnetic energy in neighboring rods via the “pinning” exchange coupling, leading to preferential localization in rods adjacent to a single field-aligned counterpart, typically near the surface. This mechanism leads to a characteristic dependence of mode concentration on the external field orientation, resulting in a noticeable mode switch or shift as the applied field is rotated.
Our analysis suggests that the interplay between curvature, connectivity, and exchange interactions underpins a robust, broadly applicable phenomenon: tuning surface-localized modes in three-dimensional nanolattices. This has significant implications for next-generation magnonic devices, including the possibility of designing tailored spin-wave pathways in 3D networks, as well as optimizing FMR-based sensors and filters that exploit these localized excitations for enhanced performance.
The detailed results and theoretical interpretations of this study are published in Ref. [1]. The research leading to these findings has been supported by the National Science Centre of Poland through Projects No. UMO-2020/39/I/ST3/02413 and No. UMO-2023/49/N/ST3/03032.

[1] Gołębiewski, M.; Szulc, K.; Krawczyk, M. “Magnetic field controlled surface localization of ferromagnetic resonance modes in 3D nanostructures,” Acta Materialia 283, 120499 (2025).

Presenter

Mr Mateusz Gołębiewski
Adam Mickiewicz University | Poland

Authors

1. Mateusz Gołębiewski | Institute of Spintronics and Quantum Information, Faculty of Physics and Astronomy, Adam Mickiewicz University, 61-614, Poznań, Poland
2. Krzysztof Szulc | 1 - Institute of Spintronics and Quantum Information, Faculty of Physics and Astronomy, Adam Mickiewicz University, 61-614, Poznań, Poland; 2 - Institute of Molecular Physics, Polish Academy of Sciences, 60-179, Poznań, Poland
3. Maciej Krawczyk | Institute of Spintronics and Quantum Information, Faculty of Physics and Astronomy, Adam Mickiewicz University, 61-614, Poznań, Poland