Suppression of Spin Relaxation in Submicron InGaAs Wires

Abstract

We investigate electron spin dynamics in narrow two-dimensional n-InGaAs channels as a function of the channel width. The spin relaxation times increase with decreasing channel width, in accordance with recent theoretical predictions based on the dimensionally-constrained D'yakonov-Perel' mechanism. Surprisingly, the suppression of the relaxation rate, which is anticipated for the one-dimensional limit, is observed for widths that are an order of magnitude larger than the electron mean free path. We find the spin precession length and the channel width to be the relevant length scales for interpreting these results.

arXiv comment5 pages, 4 figures

References in corpus (6)

• Experimental Separation of Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells
• Spin Orientation and Spin Precession in Inversion-Asymmetric Quasi Two-Dimensional Electron Systems
• Waveguide diffusion modes and slowdown of D'yakonov-Perel' spin relaxation in narrow 2-D semiconductor channels
• Electron Spin Decoherence in Bulk and Quantum Well Zincblende Semiconductors
• Control of Electron Spin Coherence Using Landau Level Quantization in a Two-Dimensional Electron Gas
• Spatial Imaging and Mechanical Control of Spin Coherence in Strained GaAs Epilayers

Cited by in corpus (44)

• Spin dynamics in semiconductors
• Current-Induced Polarization and the Spin Hall Effect at Room Temperature
• Persistent Spin Textures in Semiconductor Nanostructures
• Dimensional Control of Antilocalisation and Spin Relaxation in Quantum Wires
• All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires
• Spin relaxation in $n$-type GaAs quantum wells from a full microscopic approach
• Electrical generation of pure spin currents in a two-dimensional electron gas
• Lateral Spin Injection in Germanium Nanowires
• Persistent spin helix in Rashba-Dresselhaus two-dimensional electron systems
• Quantum World-line Monte Carlo Method with Non-binary Loops and Its Application
• Suppressed decay of a laterally confined persistent spin helix
• Theory of spin noise in nanowires
• Spin relaxation in narrow wires of a two-dimensional electron gas
• Dimensional Dependence of Weak Localization Corrections and Spin Relaxation in Quantum Wires with Rashba Spin-Orbit Coupling
• Towards a room-temperature spin quantum bus in diamond via optical spin injection, transport and detection
• Enhanced spin-orbit scattering length in narrow Al_xGa_{1-x}N/GaN wires
• Suppressed spin dephasing for 2D and bulk electrons in GaAs wires due to engineered cancellation of spin-orbit interaction terms
• Shot Noise of Spin-Decohering Transport in Spin-Orbit Coupled Nanostructures
• Transition of a 2D spin mode to a helical state by lateral confinement
• Optically induced transport properties of freely suspended semiconductor submicron channels
• Spin current source based on a quantum point contact with local spin-orbit interaction
• Ultralong spin lifetimes in one-dimensional semiconductor nanowires
• Semiclassical path integral approach on spin relaxations in narrow wires
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Spin-dephasing anisotropy for electrons in a diffusive quasi-1D GaAs wire
• Kinetic investigation on extrinsic spin Hall effect induced by skew scattering
• Relaxation of flying spin qubits in quantum wires by hyperfine interaction
• Spin freezing by Anderson localization in one-dimensional semiconductors
• Controlled rotation of electrically injected spins in a non-ballistic spin field-effect transistor
• Optical probing of spin dynamics of two-dimensional and bulk electrons in a GaAs/AlGaAs heterojunction system
• Flying electron spin control gates
• Charge and spin dynamics in a two dimensional electron gas
• Spin relaxation in sub-monolayer and monolayer InAs structures grown in GaAs matrix
• Electron spin relaxation in n-type InAs quantum wires
• Numerical study of resonant spin relaxation in quasi-1D channels
• Ballistic spin resonance in multisubband quantum wires
• Sidewall quantum wires on GaAs(001) substrates
• Spin polarization oscillations without spin precession: spin-orbit entangled resonances in quasi-one-dimensional spin transport
• Influence of inelastic relaxation time on intrinsic spin Hall effects in a disordered two-dimensional electron gas
• Effects of interaction on field-induced resonances in confined Fermi liquid
• Modulating spin relaxation in nanowires with infrared light at room temperature
• Energy-efficient hybrid spintronic-straintronic reconfigurable bit comparator
• Driving spin and charge in quantum wells by surface acoustic waves
• Spin relaxation: From 2D to 1D