Spin freezing by Anderson localization in one-dimensional semiconductors

Abstract

One-dimensional quantum wires are considered as prospective elements for spin transport and manipulation in spintronics. We study spin dynamics in semiconductor GaAs-like nanowires with disorder and spin-orbit interaction by using a rotation in the spin subspace gauging away the spin-orbit field. If the disorder is sufficiently strong, the spin density after a relatively short relaxation time reaches a plateau. This effect is a manifestation of the Anderson localization and depends in a universal way on the disorder and the spin-orbit coupling strength. As a result, at a given disorder, semiconductor nanowires can permit a long-term spin polarization tunable with the spin-orbit interactions.

References in corpus (13)

• Suppression of Spin Relaxation in Submicron InGaAs Wires
• Full Electrical Control of the Electron Spin Relaxation in GaAs Quantum Wells
• Orbital and spin relaxation in single and coupled quantum dots
• Strongly modulated transmission of a spin-split quantum wire with local Rashba interaction
• Metal-insulator transition in a quantum wire driven by a modulated Rashba spin-orbit coupling
• Modulated Rashba interaction in a quantum wire: Spin and charge dynamics
• Dyakonov-Perel spin relaxation near metal-insulator transition and in hopping transport
• One-spin quantum logic gates from exchange interactions and a global magnetic field
• Duality of the spin and density dynamics for two-dimensional electrons with a spin-orbit coupling
• Multichannel effects in Rashba quantum wires
• Effect of structure anisotropy on low temperature spin dynamics in quantum wells
• Spontaneous Emergence of Persistent Spin Helix from Homogeneous Spin Polarization
• Hole spin relaxation in $p$-type GaAs quantum wires

Cited by in corpus (7)

• Staggered and extreme localization of electron states in fractal space
• Engineering light localization in a fractal waveguide network
• Spin relaxation of a diffusively moving carrier in a random hyperfine field
• Spin transition rates in nanowire superlattices: Rashba spin-orbit coupling effects
• Charge and spin transport over record distances in GaAs metallic n-type nanowires : I photocarrier transport in a dense Fermi sea
• Charge and spin transport over record distances in GaAs metallic n-type nanowires : II nonlinear charge transport
• A fractional Anderson model