Numerical study of resonant spin relaxation in quasi-1D channels

Abstract

Recent experiments demonstrate that a ballistic version of spin resonance, mediated by spin-orbit interaction, can be induced in narrow channels of a high-mobility GaAs two-dimensional electron gas by matching the spin precession frequency with the frequency of bouncing trajectories in the channel. Contrary to the typical suppression of Dyakonov-Perel' spin relaxation in confined geometries, the spin relaxation rate increases by orders of magnitude on resonance. Here, we present Monte Carlo simulations of this effect to explore the roles of varying degrees of disorder and strength of spin-orbit interaction. These simulations help to extract quantitative spin-orbit parameters from experimental measurements of ballistic spin resonance, and may guide the development of future spintronic devices.

References in corpus (8)

• Emergence of the persistent spin helix in semiconductor quantum wells
• Suppression of Spin Relaxation in Submicron InGaAs Wires
• Unexpected features of branched flow through high-mobility two-dimensional electron gases
• Ballistic Spin Resonance
• Cubic Dresselhaus Spin-Orbit Coupling in 2D Electron Quantum Dots
• Electrical generation of pure spin currents in a two-dimensional electron gas
• Mesoscopic Spin Hall Effect
• Spin-dephasing anisotropy for electrons in a diffusive quasi-1D GaAs wire

Cited by in corpus (6)

• Kinetics of Spin Relaxation in Wires and Channels: Boundary Spin Echo and Tachyons
• Ballistic spin resonance in multisubband quantum wires
• Spin polarization oscillations without spin precession: spin-orbit entangled resonances in quasi-one-dimensional spin transport
• Effects of interaction on field-induced resonances in confined Fermi liquid
• Dynamics of Spin Relaxation in Finite-Size 2D Systems: an Exact Solution
• Gate voltage control over spin relaxation length