Spin-dependent magnetotransport through a ring in the presence of spin-orbit interaction
Abstract
The Schr\"{o}dinger equation for an electron in a mesoscopic ring, in the presence of the Rashba and linear Dresselhaus terms of the spin-orbit interaction (SOI) and of a magnetic field , is solved exactly. The effective electric fields of these terms as well as have perpendicular and radial components. The interplay between them and and their influence on the spectrum is studied. The transmission through such a ring, with two leads connected to it, is evaluated as a function of the SOI strengths and of the orientations of these fields. The Rashba and Dresselhaus terms affect the transmission in different ways. The transmission through a series of rings with different radii and with SOI in both arms of the rings or only in one of them is also evaluated. For weak magnetic fields T the influence of the Zeeman term on the transmission, assessed by perturbation theory, is negligible.
Keywords
Cite
@article{arxiv.cond-mat/0608374,
title = {Spin-dependent magnetotransport through a ring in the presence of spin-orbit interaction},
author = {X. F. Wang and P. Vasilopoulos},
journal= {arXiv preprint arXiv:cond-mat/0608374},
year = {2007}
}