The dynamics of a magnetic infinity-shaped nanostructure has beenexperimentally studied by two different techniques such as the sinusoidalresonance excitation and the damped short pulse excitation to measure theeigenfrequency of domain walls. Direct observation of the magnetic domain wallnucleation has been measured in the frequency domain. Electrical measurementsof the domain wall dynamics in the frequency domain reveal the existence ofmulti-eigenmodes for large excitation amplitudes. The time-resolvedmeasurements show that the frequency of the damped gyration is similar to thatof the frequency domain and coexistence of spin wave excitations.
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