Spin Dynamics in Antiferromagnets with Domain Walls and Disclinations


  • E. G. Galkina Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • V. E. Kireev Institute of Magnetism, Nat. Acad. of Sci. of Ukraine and Ministry of Education and Science of Ukraine
  • R. V. Ovcharov Taras Shevchenko National University of Kyiv, Faculty of Physics
  • R. S. Khymyn Department of Physics, University of Gothenburg
  • B. A. Ivanov Institute of Physics, Nat. Acad. of Sci. of Ukraine, Institute of Magnetism, Nat. Acad. of Sci. of Ukraine and Ministry of Education and Science of Ukraine, Taras Shevchenko National University of Kyiv, Faculty of Physics




antiferromagnet, disclination, spin current


The spin dynamics in antiferromagnets with atomic dislocations and dislocation-induced spin disclinations has been discussed. It is shown how the usual sigma-model equation can be used to describe it. The dynamical states with the spatially inhomogeneous spin precession are studied. It is demonstrated that such an internal dynamics of the spin disclinations and the related domain walls can serve as a basis for creating a spin-Hall nanogenerator pumped with a spin current and characterized by a low excitation threshold.


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How to Cite

Galkina, E. G., Kireev, V. E., Ovcharov, R. V., Khymyn, R. S., & Ivanov, B. A. (2020). Spin Dynamics in Antiferromagnets with Domain Walls and Disclinations. Ukrainian Journal of Physics, 65(10), 924. https://doi.org/10.15407/ujpe65.10.924



Physics of magnetic phenomena and physics of ferroics