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Inelastic light scattering by a dynamic domain wall

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6 Author(s)
Demokritov, S.O. ; Inst. of Phys. Problems, Acad. of Sci., Moscow, USSR ; Kirilyuk, A.I. ; Kreines, N.M. ; Kudinov, V.I.
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Inelastic light scattering by a moving domain wall (DW) has been observed by means of Brillouin-Mandel'stam spectroscopy. The weak ferromagnet YFeO3 (TN=645 K) was investigated. The DW velocity as a function of pulsed magnetic field was determined from the scattering spectra. As the DW velocity approaches that of sound, the scattered light intensity increases abruptly due to phonons emitted by the DW. Regions of nonstationary motion are observed wherein the scattering spectra have complicated character

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Magnetics, IEEE Transactions on  (Volume:25 ,  Issue: 5 )