Electron spin relaxation in n-type InAs quantum wires

Abstract

We investigate the electron spin relaxation of $n$-type InAs quantum wires by numerically solving the fully microscopic kinetic spin Bloch equations with the relevant scattering explicitly included. We find that the quantum-wire size and the growth direction influence the spin relaxation time by modulating the spin-orbit coupling. Due to inter-subband scattering in connection with the spin-orbit interaction, spin-relaxation in quantum wires can show different characteristics from those in bulk or quantum wells and can be effectively manipulated by various means.

8 pages, 6 figures

References in corpus (16)

• High temperature spin dephasing in n-typed GaAs quantum wells
• Spin coherence of a two-dimensional electron gas induced by resonant excitation of trions and excitons in CdTe/(Cd,Mg)Te quantum wells
• Effect of initial spin polarization on spin dephasing and electron g factor in a high-mobility two-dimensional electron system
• All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires
• Hot-electron effect in spin dephasing in $n$-type GaAs quantum wells
• Spin-3/2 physics of semiconductor hole nanowires: Valence-band mixing and tunable interplay between bulk-material and orbital bound-state spin splittings
• Multi-subband effect in spin dephasing in semiconductor quantum wells
• Spin relaxation due to the Bir-Aronov-Pikus mechanism in intrinsic and $p$-type GaAs quantum wells from a fully microscopic approach
• Large variations in the hole spin splitting of quantum-wire subband edges
• Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells
• Robust strongly-modulated transmission of a $T$-shaped structure with local Rashba interaction
• Quantum size effects in solitary wires of bismuth
• A scheme for spin transistor with extremely large on/off current ratio
• Hole spin relaxation in $p$-type GaAs quantum wires
• Tailoring hole spin splitting and polarization in nanowires
• Manipulation of spin dephasing in InAs quantum wires