Current-induced spin polarization and spin-orbit torque in graphene

Abstract

Using the Green function formalism we calculate a current-induced spin polarization of weakly magnetized graphene with Rashba spin-orbit interaction. In a general case, all components of the current-induced spin polarization are nonzero, contrary to the nonmagnetic limit, where the only nonvanishing component of spin polarization is that in the graphene plane and normal to electric field. When the induced spin polarization is exchange-coupled to the magnetization, it exerts a spin-orbit torque on the latter. Using the Green function method we have derived some analytical formulas for the spin polarization and also determined the corresponding spin-orbit torque components.

9 pages, 3 figures, version as published

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Cited by in corpus (11)

• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Spin-orbit torque in 3D topological insulator-ferromagnet heterostructure: crossover between bulk and surface transport
• Skew-scattering-induced giant antidamping spin-orbit torques: Collinear and out-of-plane Edelstein effects at two-dimensional material/ferromagnet interfaces
• Valley-dependent spin-orbit torques in two dimensional hexagonal crystals
• Crossover to the Anomalous Quantum Regime in the Extrinsic Spin Hall Effect of Graphene
• Spin and charge transport in topological nodal-line semimetals
• Tunable spin-charge conversion through topological phase transitions in zigzag nanoribbons
• The influence of anisotropic Rashba spin-orbit coupling on current-induced spin polarization in graphene
• Quantum materials interfaces: graphene/Bismuth (111) heterostructures
• Hanle effect in current induced spin orientation
• Magnetoelectric torque and edge currents in spin-orbit coupled graphene nanoribbons