Anisotropy of spin-transfer torques and Gilbert damping induced by Rashba coupling

Abstract

Spin-transfer torques (STT), Gilbert damping (GD), and effective spin renormalization (ESR) are investigated microscopically in a 2D Rashba ferromagnet with spin-independent Gaussian white-noise disorder. Rashba spin-orbit coupling induced anisotropy of these phenomena is thoroughly analysed. For the case of two partly filled spin subbands, a remarkable relation between the anisotropic STT, GD, and ESR is established. In the absence of magnetic field and other torques on magnetization, this relation corresponds to a current-induced motion of a magnetic texture with the classical drift velocity of conduction electrons. Finally, we compute spin susceptibility of the system and generalize the notion of spin-polarized current.

arXiv comment20 pages, 4 figures

References in corpus (33)

• Antiferromagnetic spintronics
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Electrical switching of an antiferromagnet
• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Microscopic approach to current-driven domain wall dynamics
• Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
• Staggering antiferromagnetic domain wall velocity in a staggered spin-orbit field
• Current-spin coupling for ferromagnetic domain walls in fine wires
• Domain wall dynamics driven by adiabatic spin transfer torques
• Spin-orbit torques in Co/Pt(111) and Mn/W(001) magnetic bilayers from first principles
• Magnetization dynamics induced by in-plane currents in ultrathin magnetic nanostructures
• Chirality from interfacial spin-orbit coupling effects in magnetic bilayers
• First-principles calculation of the Gilbert damping parameter via the linear response formalism with application to magnetic transition-metals and alloys
• Microscopic Calculation of Spin Torques in Disordered Ferromagnets
• Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets
• Giant anisotropy of Gilbert damping in epitaxial CoFe films
• Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling
• Functional Keldysh Theory of Spin Torques
• Non-Adiabatic Spin Transfer Torque in Real Materials
• Microscopic theory of spin-orbit torques and skyrmion dynamics
• Anomalous Hall effect with massive Dirac fermions
• Dirac Spin-Orbit Torques at the Surface of Topological Insulators
• Phenomenology of Current-Induced Spin-Orbit Torques
• Tensor form of magnetization damping
• Gilbert Damping in Conducting Ferromagnets II: Model Tests of the Torque-Correlation Formula
• Anomalous Hall effect in 2D Rashba ferromagnet
• Quantum Diagrammatic Theory of the Extrinsic Spin Hall Effect in Graphene
• Sensitivity of anomalous Hall effect to disorder correlations
• Perpendicular magnetic anisotropy of two-dimensional Rashba ferromagnets
• Kerr effect from diffractive skew scattering in chiral $p_x\pm i{p}_y$ superconductors
• Spin-Orbit Torques and Anisotropic Magnetization Damping in Skyrmion Crystals
• Another view on Gilbert damping in two-dimensional ferromagnets

Cited by in corpus (6)

• Chiral ferromagnetism beyond Lifshitz invariants
• Highly Tunable Spin-Orbit Torque and Anisotropic Magnetoresistance in a Topological Insulator Thin Film Attached to Ferromagnetic Layer
• Gilbert damping in metallic ferromagnets from Schwinger-Keldysh field theory: Intrinsically nonlocal and nonuniform, and made anisotropic by spin-orbit coupling
• Kubo formula for dc conductivity: generalization to systems with spin-orbit coupling
• Giant anisotropy of Gilbert damping in a Rashba honeycomb antiferromagnet
• Microscopic theory of spin friction and dissipative spin dynamics