Spin freezing by Anderson localization in one-dimensional semiconductors
Mesoscale and Nanoscale Physics
2015-06-04 v1
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.
Cite
@article{arxiv.1204.5597,
title = {Spin freezing by Anderson localization in one-dimensional semiconductors},
author = {Carlos Echeverría-Arrondo and E. Ya. Sherman},
journal= {arXiv preprint arXiv:1204.5597},
year = {2015}
}