Spin Hall utilizing U(1) and SU(2) gauge fields
arXiv:cond-mat/0701111 · doi:10.1103/PhysRevB.78.245321
Abstract
We propose a two-dimensional electron gas (2DEG) system in which an external magnetic (B) field with a small chirality is applied to provide a topological U(1) U(1) gauge field that separates conduction electrons of opposite spins in the transverse direction. Additionally, the vertical electric (E) field in the 2DEG, together with spin-orbit coupling, produces a SU(2) gauge field which reinforces / opposes the effect of the topological gauge. The system thus provides a tunable spin Hall effect, where an applied gate voltage on the 2DEG can be used to modulate the transverse spin current. As this method leads to the enhancement or cancellation of intrinsic spin Hall, it naturally distinguishes the extrinsic from the intrinsic effect.
11 pages, 3 figures
References in corpus (21)
- Universal Intrinsic Spin-Hall Effect
- Spin Anisotropy and Quantum Hall Effect in the Kagome Lattice - Chiral Spin State based on a Ferromagnet-
- Topological Hall effect and Berry phase in magnetic nanostructures
- Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
- Suppression of the Persistent Spin Hall Current by Defect Scattering
- Zitterbewegung of electronic wave packets in semiconductor nanostructures
- Anisotropic transport in the two-dimensional electron gas in the presence of spin-orbit coupling
- Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?
- Intrinsic Spin Hall Effect in the Two Dimensional Hole Gas
- Spin transverse force on spin current in an electric field
- Spin Hall effect and Berry phase of spinning particles
- Absence of vertex correction for the spin Hall effect in p-type semiconductors
- Non-Abelian gauge field theory of the spin-orbit interaction and a perfect spin filter
- Intrinsic Spin Hall Edges
- Spin Accumulation and Equilibrium Currents at the Edge of 2DEGs with Spin-Orbit Coupling
- Transverse Spin-Orbit Force in the Spin Hall Effect in Ballistic Semiconductor Wires
- Spin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling
- "Phase Diagram" of the Spin Hall Effect
- Magnetic focusing of charge carriers from spin-split bands: Semiclassics of a Zitterbewegung effect
- Spin-Hall edge spin polarization in a ballistic 2D electron system
- Edge Spin Current and Spin Polarization in Quantum Hall Regime
Cited by in corpus (8)
- General Theory of the Zitterbewegung
- Unified Description of the Intrinsic Spin-Hall Effects
- Gauge Physics of Spin Hall Effect
- Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene Systems
- Spin force and the generation of sustained spin current in time-dependent Rashba and Dresselhauss systems
- The geometric phase and the geometrodynamics of relativistic electron vortex beams
- Sustainable spin current in the time-dependent Rashba system
- The Aharonov Casher phase of a bipartite entanglement pair traversing a quantum square ring