Precessionless spin transport wire confined in quasi-two-dimensional electron systems
arXiv:cond-mat/0408638 · doi:10.1063/1.2172584
Abstract
We demonstrate that in an inversion-asymmetric two-dimensional electron system 2DES with both Rashba and Dresselhaus spin-orbit couplings taken into account, certain transport directions on which no spin precession occurs can be found when the injected spin is properly polarized. By analyzing the expectation value of spin with respect to the injected electron state on each space point in the 2DES, we further show that the adjacent regions with technically reachable widths along these directions exhibit nearly conserved spin. Hence a possible application in semiconductor spintronics, namely, precessionless spin transport wire, is proposed.
arXiv comment3 pages, 4 figures, to be appeared in Journal of Applied Physics, Proceedings of the 50th MMM Conference
References in corpus (10)
- Non-ballistic spin field-effect transistor
- Weak Antilocalization and Spin Precession in Quantum Wells
- Experimental Separation of Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells
- Decoherence of transported spin in multichannel spin-orbit coupled spintronic devices: Scattering approach to spin density matrix from the ballistic to the localized regime
- 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
- Spin relaxation dynamics of quasiclassical electrons in ballistic quantum dots with strong spin-orbit coupling
- The role of orbital dynamics in spin relaxation and weak antilocalization in quantum dots
- Effect of bulk inversion asymmetry on the Datta-Das transistor
- Spin precession due to spin-orbit coupling in a two-dimensional electron gas with spin injection via ideal quantum point contact