Opposite spin accumulations on the transverse edges by the confining potential
arXiv:cond-mat/0604502 · doi:10.1103/PhysRevB.74.155313
Abstract
We show that the spin-orbit interaction induced by the boundary confining potential causes opposite spin accumulations on the transverse edges in a zonal two-dimensional electron gas in the presence of external longitudinal electric field. While the bias is reversed, the spin polarized direction is also reversed. The intensity of the spin accumulation is proportional to the bias voltage. In contrast to the bulk extrinsic and intrinsic spin Hall effects, the spin accumulation by the confining potential is almost unaffected by impurity and survives even in strong disorder. The result provides a new mechanism to explain the recent experimental data.
5 pages, 6 figures
References in corpus (9)
- Dissipationless Quantum Spin Current at Room Temperature
- Spin current and polarization in impure 2D electron systems with spin-orbit coupling
- SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
- Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures?
- Spin-Hall effect in a disordered 2D electron-system
- Sign Changes of Intrinsic Spin Hall Effect in Semiconductors and Simple Metals: First-Principles Calculations
- Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
- Kinetic magnetoelectric effect in a 2D semiconductor strip due to boundary-confinement induced spin-orbit coupling
- Spin accumulation in ballistic Rashba bar
Cited by in corpus (7)
- Persistent spin current in nano-devices and definition of the spin current
- Spin polarized current generation from quantum dots without magnetic fields
- Stroboscopic wavepacket description of non-equilibrium many-electron problems
- All-Electrical Generation of Spin-Polarized Currents in Quantum Spin Hall Insulators
- Enhanced spin Hall effect by tuning antidot potential: Proposal for a spin filter
- Giant mesoscopic spin Hall effect on surface of topological insulator
- Spin Bias Measurement Based on a Quantum Point Contact