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Phenomenology of current-induced skyrmion motion in antiferromagnets
- 1.0471289 - FZÚ 2017 RIV GB eng J - Journal Article
Velkov, H. - Gomonay, O. - Beens, M. - Schwiete, G. - Brataas, A. - Sinova, Jairo - Duine, R.A.
Phenomenology of current-induced skyrmion motion in antiferromagnets.
New Journal of Physics. Roč. 18, Jul (2016), 1-6, č. článku 075016. ISSN 1367-2630. E-ISSN 1367-2630
Institutional support: RVO:68378271
Keywords : antiferromagnetic skyrmions * phenomenology * spin-orbit torques * electric currents * magnetization dynamics * Dzyaloshinskii-Moriya interactions
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.786, year: 2016
We study current-driven skyrmion motion in uniaxial thin film antiferromagnets in the presence of the Dzyaloshinskii-Moriya interactions and in an external magnetic field. We phenomenologically include relaxation and current-induced torques due to both spin-orbit coupling and spatially inhomogeneous magnetic textures in the equation for the Neel vector of the antiferromagnet. Using the collective coordinate approach we apply the theory to a two-dimensional antiferromagnetic skyrmion and estimate the skyrmion velocity under an applied DC electric current.
Permanent Link: http://hdl.handle.net/11104/0268678
Number of the records: 1