Spin Hall Effect-driven Spin Torque in Magnetic Texture

Abstract

Current-induced spin torque and magnetization dynamics in the presence of spin Hall effect in magnetic textures is studied theoretically. The local deviation of the charge current gives rise to a current-induced spin torque of the form (1-β{\bf M})x[({\bf u}_0+α_H{\bf u}_0x\bf M})\cdot{\bm \nabla}]{\bf M}, where {\bf u}_0 is the direction of the injected current, α_H is the Hall angle and βis the non-adiabaticity parameter due to spin relaxation. Since α_H and βcan have a comparable order of magnitude, we show that this torque can significantly modify the current-induced dynamics of both transverse and vortex walls.

3 pages, 1 Figure

References in corpus (4)

• Current-induced domain wall motion in Rashba spin-orbit system
• Current-driven vortex domain wall dynamics by micromagnetic simulations
• Spin torque and force due to current for general spin textures
• Current-Induced Resonant Motion of a Magnetic Vortex Core: Effect of Nonadiabatic Spin Torque

Cited by in corpus (6)

• Theory of Topological Spin Hall Effect in Antiferromagnetic Skyrmion: Impact on Current-induced Motion
• Current-induced motion of a transverse magnetic domain wall in the presence of spin Hall effect
• Spin-Motive Forces and Current-Induced Torques in Ferromagnets
• Self-consistent calculation of spin transport and magnetization dynamics
• Enhanced Non-Adiabaticity in Vortex Cores due to the Emergent Hall Effect
• Numerical Computation of Spin-Transfer Torques for Antiferromagnetic Domain walls