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Magnus force and magnetic vortex dynamics in weak ferromagnets

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Abstract

The problem of the gyroscopic (Magnus) force in weak ferromagnets, acting on magnetic vortices being in moving domain walls was studied. A general formula for the gyroscopic force in weak ferromagnets was obtained. It was shown that the gyroscopic force is nonzero for most types of domain walls and is defined by the average magnetization of sublattices, the constants of the Dzyaloshinski interaction and exchange interaction between sublattices. Generalized expressions for effective Lagrangians and the Rayleigh functions in weak ferromagnets were derived taking into account their vortical structure.

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Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    A. K. Zvezdin

  2. Fondazione ISI, 10133, Torino, Italy

    K. A. Zvezdin

Authors
  1. A. K. Zvezdin
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  2. K. A. Zvezdin
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Correspondence to A. K. Zvezdin.

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Original Russian Text © A.K. Zvezdin, K.A. Zvezdin, 2010, published in Kratkie Soobshcheniya po Fizike, 2010, Vol. 37, No. 8, pp. 22–32.

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Zvezdin, A.K., Zvezdin, K.A. Magnus force and magnetic vortex dynamics in weak ferromagnets. Bull. Lebedev Phys. Inst. 37, 240–247 (2010). https://doi.org/10.3103/S1068335610080038

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  • DOI: https://doi.org/10.3103/S1068335610080038

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