Transport Equations and Spin-Charge Propagating Mode in the Two Dimensional Hole Gas
arXiv:cond-mat/0601353 · doi:10.1103/PhysRevB.74.193316
Abstract
We find that the spin-charge motion in a strongly confined two-dimensional hole gas (2DHG) supports a propagating mode of cubic dispersion apart from the diffusive mode due to momentum scattering. Propagating modes seem to be a generic property of systems with spin-orbit coupling. Through a rigorous Keldysh approach, we obtain the transport equations for the 2DHG, we analyze the behavior of the hole spin relaxation time, the diffusion coefficients, and the spin-charge coupled motion.
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- Dissipationless Quantum Spin Current at Room Temperature
- Spin current and polarization in impure 2D electron systems with spin-orbit coupling
- Observation of spin Coulomb drag in a two-dimensional electron gas
- Intrinsic Spin Hall Effect in the Two Dimensional Hole Gas
- Spin-Hall transport of heavy holes in III-V semiconductor quantum wells
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Cited by in corpus (7)
- Detection of current-induced spins by ferromagnetic contacts
- Onsager relations in a two-dimensional electron gas with spin-orbit coupling
- Spin thermoelectrics in a disordered Fermi gas
- Hole Spin Helix: Anomalous Spin Diffusion in Anisotropic Strained Hole Quantum Wells
- Spin-Hall effect and spin-coherent excitations in a strongly confined two-dimensional hole gas
- Oscillation of spin polarization in a two-dimensional hole gas under a perpendicular magnetic field
- Spin Response to Localized Pumps: Exciton Polaritons Versus Electrons and Holes