Nonlinear ferromagnetic resonance in the presence of 3-magnon scattering in magnetic nanostructures
Nonlinear ferromagnetic resonance in the presence of 3-magnon scattering in magnetic nanostructures
Slobodianiuk, D. V.; Melkov, G. A.; Schultheiß, K.; Schultheiß, H.; Verba, R. V.
Bulk and patterned ferromagnets can exhibit various nonlinear phenomena at moderate excitation power, making them a nice test bed for study of nonlinear dynamics. We investigate nonlinear ferromagnetic resonance in magnetic nanostructures with discrete spectra of spin-wave modes in the case of allowed 3-magnon scattering processes. These processes result in the splitting of a directly driven spin-wave mode into two secondary modes if a certain excitation threshold is overcome. The 3-magnon splitting manifests itself as a characteristic distortion of the resonance curve, which can be detected in a simple ferromagnetic resonance experiment. Theoretical results are also compared to the experimental study of nonlinear spin-wave dynamics in a vortex-state magnetic disk, in which 3-magnon splitting is confirmed by direct measurements using Brillouin light scattering microscopy.
Keywords: nonlinear ferromagnetic resonance; 3-magnon scattering; spin-wave modes; magnetic vortex; Brillouin light scattering; magnetic nanoelements
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 29171) publication
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IEEE Magnetics Letters 10(2019), 6103405
DOI: 10.1109/LMAG.2019.2913132
ISSN: 1949-3088
Cited 14 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-29171