Determination of Rashba and Dresselhaus spin-orbit fields

TL;DR

This paper explores measuring Rashba and Dresselhaus spin-orbit interaction strengths by calculating persistent charge and spin currents in a mesoscopic ring, providing a potential experimental verification method.

Contribution

It proposes a novel approach to determine absolute spin-orbit interaction strengths through numerical calculations of persistent currents.

Findings

Numerical results suggest measurable persistent currents related to spin-orbit interactions.

The method offers a practical way to experimentally verify spin-orbit coupling strengths.

The approach enhances understanding of spin-dependent phenomena in mesoscopic systems.

Abstract

Determination of Rashba and Dresselhaus spin-orbit interaction strengths in a particular sample remains a challenge even today. In this article we investigate the possibilities of measuring the absolute values of these interaction strengths by calculating persistent charge and spin currents in a mesoscopic ring. Our numerical results can be verified experimentally.