Regensburg 2025 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
MA: Fachverband Magnetismus
MA 20: Magnonics II
MA 20.14: Talk
Wednesday, March 19, 2025, 13:00–13:15, H16
Dynamic Control of Spin-Wave Propagation for Advanced Computing Applications — •Dmitrii Raskhodchikov1, Kirill Nikolaev2, Jannis Bensmann1, Rudolf Bratschitsch1, Vladislav Demidov2, Sergey Demokritov2, and Wolfram Pernice1,3 — 1Institute of Physics and Center for Nanotechnology (CeNTech), Muenster, Germany — 2Institute of Applied Physics, Muenster, Germany — 3Kirchhoff-Institute for Physics, Heidelberg, Germany
Spin waves, collective excitations of electron spins in magnetic materials, have attracted significant interest for spin-wave and neuromorphic computing applications. A key challenge in utilizing spin waves for these technologies is achieving precise control over their propagation. This study investigates methods to regulate spin-wave dynamics by manipulating parameters like the external magnetic field, excitation frequency, and the integration of external memory elements, including phase-change materials.
Our results show that varying the external magnetic field influences the dispersion relation of spin waves, allowing for tunable propagation velocities and wavelengths. Adjusting the excitation frequency enables selective excitation of spin-wave modes with desired properties. Furthermore, incorporating phase-change materials allows for dynamic modulation of spin-wave propagation through localized changes in magnetic anisotropy or damping. This approach provides a foundation for adaptive control mechanisms essential for spin-wave-based information processing.
Keywords: Spin waves; Magnonics; Neuromorphic computing; Spintronics; Information processing