Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas
arXiv:cond-mat/0701425 · doi:10.1088/0953-8984/20/21/215206
Abstract
The influence of inelastic relaxation time on the intrinsic spin Hall effects in a disordered two-dimensional electron gas with Rashba interaction is studied, which clarifies the controversy of impurity effects in the system. We reveal that, due to the existence of inelastic scattering, the spin Hall conductivity does not vanish when the impurity concentration diminishes to zero no matter it is non-magnetically or magnetically disordered. The spin accumulation is evaluated by using the obtained spin Hall conductivity, and an alternate route is suggested to verify the intrinsic spin Hall effect by measuring the spin accumulation at different ratios.
arXiv commentRevtex 6 pages, 1 figure, extended with more details
References in corpus (21)
- Universal Intrinsic Spin-Hall Effect
- Dissipationless Quantum Spin Current at Room Temperature
- Direct electronic measurement of the spin Hall effect
- Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
- Spin current and polarization in impure 2D electron systems with spin-orbit coupling
- Spatial imaging of the spin Hall effect and current-induced polarization in two-dimensional electron gases
- Suppression of the Persistent Spin Hall Current by Defect Scattering
- Theory of Spin Hall conductivity in n-doped GaAs
- Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?
- Spin-Hall effect in a disordered 2D electron-system
- Spin Hall Effect in Doped Semiconductor Structures
- Generating Spin Currents in Semiconductors with the Spin Hall Effect
- Suppression of Spin Relaxation in Submicron InGaAs Wires
- Sum rules for spin-Hall conductivity cancelation
- Vertex Corrections on the Anomalous Hall Effect in Spin-polarized Two-dimensional Electron Gases with Rashba Spin-orbit Interaction
- Edge spin accumulation in semiconductor two-dimensional hole gases
- Dependence of the intrinsic spin Hall effect on spin-orbit interaction character
- Non-vanishing spin Hall currents in disordered spin-orbit coupling systems
- The Intrinsic Spin Hall Conductivity in a Generalized Rashba Model
- Off-Fermi surface cancellation effects in spin-Hall conductivity of a two-dimensional Rashba electron gas
- Nonvanishing spin Hall currents in the presence of magnetic impurities