Dataset Open Access
Körber, Lukas; Schultheiß, Katrin; Hula, Tobias; Verba, Roman; Faßbender, Jürgen; Kakay, Attila; Schultheiß, Helmut
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Our micromagnetic simulations and Brillouin-light-scattering results confirm that three-magnon splitting can be triggered even below threshold by exciting one of the secondary modes by magnons propagating in a waveguide next to the disk. The experiments show that stimulation is possible over an extended range of excitation powers and a wide range of frequencies around the eigenfrequencies of the secondary modes. Rate-equation calculations predict an instantaneous response to stimulation and the possibility to prematurely trigger three-magnon splitting even above threshold in a sustainable manner. These predictions are confirmed experimentally using time-resolved Brillouin-light-scattering measurements and are in a good qualitative agreement with the theoretical results. We believe that the controllable mechanism of stimulated three-magnon splitting could provide a possibility to utilize magnon-based nonlinear networks as hardware for reservoir or neuromorphic computing.</p>\n\n<p>Here, we briefly describe how the archived data for the publication "Nonlocal stimulation of three-magnon splitting in a magnetic vortex", submitted to PRL, is structured.</p>\n\n<p>"rate-equations"<br>\n- theoretical data of the temporal evolution of the spin wave modes in Fig. 4</p>\n\n<p>"micromagnetic-simulation"<br>\n- MuMax3 simulation recipes (.go files) and sample-layout masks for the<br>\nsimulations performed for Fig. 2(a,b,c).<br>\n- corresponding power spectra obtained with our "mumax3-pwsp" program<br>\n- mode profiles for stimulated and spontaneous splitting (Fig. 1(c) and Fig. 2(d))<br>\n- dispersion of the spin waves, calculated by micromagetnic simulation, shown in Fig. 1(b)</p>\n\n<p>"experiments"<br>\n- electron beam microscopy image of the sample<br>\n- intensity spectrum of the waveguide, used to calculate the approximate<br>\nfrequency/wave-vector region where the waveguide is effective (inset in Fig. 1(c))<br>\n- non-time-resolved BLS measurements, including spectra, power sweeps, etc. for<br>\nFigs 2,3 in "i3MS" folders, in more detail described by "i3MS_V1_KS_logbook.pdf"<br>\n- time-resolved BLS measurements, further explained in the corresponding subfolders<br>\n </p>", "title": "Nonlocal stimulation of three-magnon splitting in a magnetic vortex", "resource_type": { "title": "Dataset", "type": "dataset" }, "publication_date": "2020-06-11", "communities": [ { "id": "hzdr" }, { "id": "rodare" } ], "access_right_category": "success", "language": "eng", "access_right": "open", "keywords": [ "spin wave", "nonlinear", "three-magnon splitting", "stimulation", "micromagnetic simulation", "BLS" ] }, "updated": "2020-10-30T12:02:17.586857+00:00", "created": "2020-06-11T07:57:35.334683+00:00", "id": 365, "owners": [ 198 ], "conceptrecid": "364", "doi": "10.14278/rodare.365" }
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Data volume | 28.6 GB | 28.6 GB |
Unique views | 487 | 487 |
Unique downloads | 55 | 55 |