Nonstationary spin waves in a single rectangular permalloy microstrip under uniform magnetic excitation
Sprache des Titels:
Englisch
Original Kurzfassung:
Ferromagnetic resonance modes in a single rectangular Ni80Fe20 microstrip were directly imaged using
time-resolved scanning transmission x-ray microscopy combined with a phase-locked ferromagnetic resonance
excitation scheme, and the findings were corroborated by micromagnetic simulations. Although under uniform
excitation in a single confined microstructure typically standing spin waves are expected, all imaged spin
waves showed a nonstationary character both at and off resonance, the latter being additionally detected with
microantenna-based ferromagnetic resonance. The effect of the edge quality on the spin waves was observed in
micromagnetic simulations.
Sprache der Kurzfassung:
Englisch
Journal:
Physical Review B: Condensed Matter and Materials Physics
Forschungs-