6533b823fe1ef96bd127eb8d
RESEARCH PRODUCT
Phenomenology of current-induced skyrmion motion in antiferromagnets
Rembert A. DuineRembert A. DuineOlena GomonayOlena GomonayArne BrataasMaarten BeensHristo VelkovJairo SinovaGeorg Schwietesubject
PhysicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsSkyrmionRelaxation (NMR)General Physics and AstronomyMotion (geometry)FOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesMagnetic fieldCoupling (physics)0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)AntiferromagnetismCondensed Matter::Strongly Correlated ElectronsElectric current010306 general physics0210 nano-technologyPhenomenology (psychology)description
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 N\'eel 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-07-20 | New Journal of Physics |