Electron Spin Dynamics in Impure Quantum Wells for Arbitrary Spin-Orbit Coupling
arXiv:cond-mat/0501174 · doi:10.1103/PhysRevB.72.075307
Abstract
Strong interest has arisen recently on low-dimensional systems with strong spin-orbit interaction due to their peculiar properties of interest for some spintronic applications. Here, the time evolution of the electron spin polarization of a disordered two-dimensional electron gas is calculated exactly within the Boltzmann formalism for arbitrary couplings to a Rashba spin-orbit field. The classical Dyakonov-Perel mechanism of spin relaxation is shown to fail for sufficiently strong Rashba fields, in which case new regimes of spin decay are identified. These results suggest that spin manipulation can be greatly improved in strong spin-orbit interaction materials.
5 pages, 2 figures -revised version
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- Topological Change of the Fermi Surface in Low Density Rashba Gases: Application to Superconductivity
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- Unified theory of spin-dynamics in a two dimensional electron gases with arbitrary spin-orbit coping strength at finite temperature
- Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells
- Unconventional thermoelectric behaviors and enhancement of figure of merit in Rashba spintronic systems
- Effect of structure anisotropy on low temperature spin dynamics in quantum wells
- Spin polarization decay in spin-1/2 and spin-3/2 systems
- Weak and strong coupling limits of the two-dimensional Fröhlich polaron with spin-orbit Rashba interaction
- Transport regimes for exciton-polaritons in disordered microcavities
- Photon-induced tunability of the thermospin current in a Rashba ring
- Spin freezing by Anderson localization in one-dimensional semiconductors
- Spatial trends of non-collinear exchange coupling mediated by itinerant carriers with different Fermi surfaces
- Anomalous D'yakonov-Perel' spin relaxation in semiconductor quantum wells under strong magnetic field in Voigt configuration
- Coherent spin dynamics of excitons in strained monolayer semiconductors
- Nonexponential spin decay in a quantum kinetic description of the D'yakonov-Perel' mechanism mediated by impurity scattering
- Transport in two dimensional Rashba electron systems doped with interacting magnetic impurities