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Resonance retardation of a domain wall by Winter magnons in orthoferrites

  • Magnetism and Ferroelectricity
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Abstract

Supersonic domain-wall dynamics is investigated in wafer samples of YFeO3 having thicknesses of 10 µm, 35 µm, 40 µm, 120 µm, and 125 µm, prepared by different methods, and in a EuFeO3 sample of thickness 60 µm at liquid-nitrogen temperature. Relations are established for the occurrence of nonlinear segments in the form of constant-wall-velocity intervals in the dependence of the wall velocity on the pulsed magnetic field amplitude. Qualitative agreement is obtained between the experimental data and calculated values of the velocities and widths of the constant-velocity intervals, on the assumption that the mechanism of resonance retardation of the domain walls by parametrically excited Winter (wall as opposed to bulk) magnons is operative at supersonic velocities.

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Fiz. Tverd. Tela (St. Petersburg) 40, 1656–1660 (September 1998)

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Chetkin, M.V., Kuz’menko, A.P., Kaminskii, A.V. et al. Resonance retardation of a domain wall by Winter magnons in orthoferrites. Phys. Solid State 40, 1506–1510 (1998). https://doi.org/10.1134/1.1130586

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  • DOI: https://doi.org/10.1134/1.1130586

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