Spin relaxation in narrow wires of a two-dimensional electron gas

Abstract

How does an initially homogeneous spin-polarization in a confined two-dimensional electron gas with Rashba spin-orbit coupling evolve in time? How does the relaxation time depend on system size? We study these questions for systems of a size that is much larger than the Fermi wavelength, but comparable and even shorter than the spin relaxation length. Depending on the confinement spin-relaxation may become faster or slower than in the bulk. An initially homogeneously polarized spin system evolves into a spiral pattern.

5 pages, 4 figures

References in corpus (6)

• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Suppression of Spin Relaxation in Submicron InGaAs Wires
• Spin-Hall transport of heavy holes in III-V semiconductor quantum wells
• Quasiclassical approach to the spin-Hall effect in the two-dimensional electron gas
• Long-Lived Spin Coherence States
• Quasiclassical theory of charge transport in disordered interacting electron systems

Cited by in corpus (13)

• Spontaneous Edge Accumulation of Spin Currents in Finite-Size Two-Dimensional Diffusive Spin-Orbit Coupled SFS Heterostructures
• Spin polarization decay in spin-1/2 and spin-3/2 systems
• Spontaneous Emergence of Persistent Spin Helix from Homogeneous Spin Polarization
• Enhanced longevity of the spin helix in low-symmetry quantum wells
• Semiclassical path integral approach on spin relaxations in narrow wires
• Hole spin relaxation in $p$-type GaAs quantum wires
• Radial Spin Helix in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling
• Current-induced spin polarization and the spin Hall effect: a quasiclassical approach
• Electron spin relaxation in n-type InAs quantum wires
• Spin drift-diffusion for two-subband quantum wells
• Effects of interaction on field-induced resonances in confined Fermi liquid
• Driving spin and charge in quantum wells by surface acoustic waves
• Reliable modeling of weak antilocalization for accurate spin-lifetime extraction