Drag on magnetic solitons representing antiferromagnetic domain walls
А. В. ЗуевPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovB. A. IvanovPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovA. L. Sukstanskiı̆Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Аннотация
For the case of magnetic solitons corresponding to domain boundaries in antiferromagnets we consider the dynamic drag caused by processes involving thermal phonons. It is shown that the phonon drag is due to the scattering of phonons from moving domain walls and by processes in which a phonon is transformed into a magnon at a domain wall. We calculate the dependence of the domain wall drag force as a function of temperature and of the parameters of the antiferromagnet, and we present a comparison of the contributions to the domain wall drag due to the phonon and phonon-magnon processes.
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