Datta-Das type spin-field effect transistor in non-ballistic regime

Abstract

It is revealed that in spin helix state of (001) quantum well system, strong suppression of D'yakonov-Perel' spin relaxation process occurs by an interplay between Rashba and Dresselhaus couplings over a wide range of Rashba coupling strength. Contrary to common belief in early works, this leads to the finding that Datta-Das type spin-field effect transistor is actually applicable to more realistic non-ballistic transport regime in two dimensional electron gas system.

8 pages, 3 figures

References in corpus (6)

• An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
• Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells Measured by Spin Photocurrents
• Persistent spin helix in Rashba-Dresselhaus two-dimensional electron systems
• Drift-Diffusion Approach to Spin-Polarized Transport
• Long-Lived Spin Coherence States
• Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells

Cited by in corpus (4)

• Emergence of the persistent spin helix in semiconductor quantum wells
• Spin control in semiconductor quantum wires
• Modeling of diffusion of injected electron spins in spin-orbit coupled microchannels
• Random walk approach to spin dynamics in a two-dimensional electron gas with spin-orbit coupling