Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf
2 PublikationenPattern recognition in reciprocal space with a magnon-scattering reservoir
Körber, L.; Heins, C.; Hula, T.; Kim, J.-V.; Thlang, S.; Schultheiß, H.; Faßbender, J.; Schultheiß, K.
Abstract
Magnons are elementary excitations in magnetic materials and undergo nonlinear multimode scattering processes at large input powers. In experiments and simulations, we show that the interaction between magnon modes of a confined magnetic vortex can be harnessed for pattern recognition. We study the magnetic response to signals comprising sine wave pulses with frequencies corresponding to radial mode excitations. Three-magnon scattering results in the excitation of different azimuthal modes, whose amplitudes depend strongly on the input sequences. We show that recognition rates above 95\% can be attained for four-symbol sequences using the scattered modes, with strong performance maintained with the presence of amplitude noise in the inputs.
Keywords: spin wave; magnon; vortex; Brillouin-light scattering; BLS; reservoir computing; neuromorphic computing; nonlinear; three-magnon scattering; micromagnetic simulations
Verknüpfte Publikationen
-
Data publication: Pattern recognition in reciprocal space with a …
ROBIS: 37152 HZDR-primary research data are used by this (Id 34945) publication -
Data publication: Pattern recognition in reciprocal space with a …
RODARE: 2345 HZDR-primary research data are used by this (Id 34945) publication
-
Nature Communications 14(2023), 3954
DOI: 10.1038/s41467-023-39452-y
Cited 8 times in Scopus -
Sonstiger Vortrag
Kolloquium der TU München (vorgetragen von Dr. H. Schultheiss), 09.02.2023, München, Deutschland
Permalink: https://www.hzdr.de/publications/Publ-34945