Nonvanishing spin Hall currents in the presence of magnetic impurities

Abstract

The intrinsic spin Hall conductivity in a two dimensional electron gas with Rashba spin-orbit coupling is evaluated by taking account of anisotropic coupling between magnetic impurities and itinerant electrons. In our calculation Kubo's linear response formalism is employed and the vertex correction is considered. In the semiclassical limit $\mu \gg 1/\tau$, a non-vanishing spin Hall conductivity ${\sigma }_{sH}^{}$ is found to depend on the momentum relaxation time $\tau$, spin-orbit splitting $\Delta$ and the anisotropic coefficient of interaction between itinerant electrons and magnetic impurities. The clean limit of ${\sigma }_{sH}^{}$ is in the region of $e/8\pi \sim e/6\pi$, depending on the anisotropic coefficient.

Revtex, 6 pages, 4 figures, version to appear in PRB

References in corpus (7)

• Dissipationless Quantum Spin Current at Room Temperature
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Theory of Spin Hall conductivity in n-doped GaAs
• Spin-Hall effect in a disordered 2D electron-system
• Dissipation effects in spin-Hall transport of electrons and holes
• Vertex Corrections on the Anomalous Hall Effect in Spin-polarized Two-dimensional Electron Gases with Rashba Spin-orbit Interaction
• Off-Fermi surface cancellation effects in spin-Hall conductivity of a two-dimensional Rashba electron gas

Cited by in corpus (12)

• Spin polarizations and spin Hall currents in a two-dimensional electron gas with magnetic impurities
• Spin Hall and longitudinal conductivity of a conserved spin current in two dimensional heavy-hole gases
• Dynamical spin Hall conductivity in a magnetic disordered system
• Magnification of spin Hall effect in bilayer electron gas
• Rashba torque beyond the Boltzmann regime
• Semiclassical Boltzmann theory of spin Hall effects in giant Rashba systems
• Spin torque contribution to the a.c. spin Hall conductivity
• Charge and spin Hall effect in graphene with magnetic impurities
• Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas
• Quasiclassical approach and spin-orbit coupling
• Bilinear magnetoresistance in topological insulators: role of magnetic disorder
• Tunneling spin current and spin diode behavior in bilayer system