Rashba effect in 2D mesoscopic systems with transverse magnetic field

TL;DR

This paper investigates how strong magnetic fields influence Rashba spin-orbit effects in 2D quantum wires, revealing potential for spin filtering devices through semiclassical and quantum analyses.

Contribution

It provides new analytical and numerical insights into the interplay of magnetic fields and Rashba coupling in mesoscopic systems, highlighting implications for spin transport and device applications.

Findings

Magnetic field enhances spin polarization effects.

Rashba coupling influences spin textures significantly.

Potential for spin filtering devices in quantum wires.

Abstract

We present semiclassical and quantum mechanical results for the effects of a strong magnetic field in Quantum Wires in the presence of Rashba Spin Orbit coupling. Analytical and numerical results show how the perturbation acts in the presence of a transverse magnetic field in the ballistic regime and we assume a strong reduction of the backward scattering interaction which could have some consequences for the Tomonaga-Luttinger transport. We analyze the spin texture due to the action of Spin Orbit coupling and magnetic field often referring to the semiclassical solutions that magnify the singular spin polarization: results are obtained for free electrons in a twodimensional electron gas and for electrons in a Quantum Wire. We propose the systems as possible devices for the spin filtering at various regimes.