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Resonance of Spin Waves and Domain-Wall Excitations in Ferromagnetic Stripes

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1 Author(s)
Janutka, A. ; Inst. of Phys., Wroclaw Univ. of Technol., Wrocław, Poland

The interaction of a domain wall (DW) with a propagating spin wave (SW) in soft-magnetic nanostripes is studied analytically. The resonance of the propagating mode with an internal spin excitation of the DW (a Winter-like mode) is examined with relevance to the SW-driven translational motion of the DW. This frequency coincidence (a classical counterpart of the Fano resonance) is possible due to the width quantization of the magnetization waves in the stripe and it enables forward pushing of the DW by the SW. Frequencies of the internal excitations of the DW (resonance frequencies) and the corresponding values of the DW velocity are evaluated.

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Magnetics Letters, IEEE  (Volume:4 )