Phenomenology of current-induced skyrmion motion in antiferromagnets

H. Velkov; O. Gomonay; M. Beens; G. Schwiete; A. Brataas; J. Sinova; R. A. Duine

doi:10.1088/1367-2630/18/7/075016

Phenomenology of current-induced skyrmion motion in antiferromagnets

H. Velkov, O. Gomonay, M. Beens, G. Schwiete, A. Brataas, J. Sinova, R. A. Duine

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

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 Néel 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.

Original language	English
Journal	New Journal of Physics
Volume	18
Issue number	7
DOIs	https://doi.org/10.1088/1367-2630/18/7/075016
Publication status	Published - 1 Jul 2016

Keywords

Dzyaloshinskii-Moriya interactions
antiferromagnetic skyrmions
electric currents
magnetization dynamics
phenomenology
spin-orbit torques

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10.1088/1367-2630/18/7/075016

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title = "Phenomenology of current-induced skyrmion motion in antiferromagnets",

abstract = "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{\'e}el 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.",

keywords = "Dzyaloshinskii-Moriya interactions, antiferromagnetic skyrmions, electric currents, magnetization dynamics, phenomenology, spin-orbit torques",

author = "H. Velkov and O. Gomonay and M. Beens and G. Schwiete and A. Brataas and J. Sinova and Duine, {R. A.}",

year = "2016",

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TY - JOUR

T1 - Phenomenology of current-induced skyrmion motion in antiferromagnets

AU - Velkov, H.

AU - Gomonay, O.

AU - Beens, M.

AU - Schwiete, G.

AU - Brataas, A.

AU - Sinova, J.

AU - Duine, R. A.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - 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 Néel 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.

AB - 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 Néel 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.

KW - Dzyaloshinskii-Moriya interactions

KW - antiferromagnetic skyrmions

KW - electric currents

KW - magnetization dynamics

KW - phenomenology

KW - spin-orbit torques

UR - https://www.mendeley.com/catalogue/946ef460-ba47-38cc-9d85-b324ba53c0e5/

U2 - 10.1088/1367-2630/18/7/075016

DO - 10.1088/1367-2630/18/7/075016

M3 - Article

SN - 1367-2630

VL - 18

JO - New Journal of Physics

JF - New Journal of Physics

IS - 7

ER -

Phenomenology of current-induced skyrmion motion in antiferromagnets

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Keywords

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