Friedel oscillations in 2D electron gas from spin-orbit interaction in a parallel magnetic field

TL;DR

This paper theoretically investigates how a parallel magnetic field influences Friedel oscillations and local density variations in a 2D electron gas with Rashba-Dresselhaus spin-orbit interaction, revealing magnetic and non-magnetic defect effects.

Contribution

It introduces a theoretical analysis of magnetic field effects on electron wave interference and local density oscillations in a 2D spin-orbit coupled electron gas.

Findings

Magnetic field causes anisotropic spatial distribution of local density of states.

Oscillations of magnetization density are predicted around non-magnetic defects.

Magnetic scattering with spin-flip contributes to local electron density variations.

Abstract

Effects associated with the interference of electron waves around a magnetic point defect in two-dimensional electron gas with combined Rashba-Dresselhaus spin-orbit interaction in the presence of a parallel magnetic field are theoretically investigated. The effect of a magnetic field on the anisotropic spatial distribution of the local density of states and the local density of magnetization is analyzed. The existence of oscillations of the density of magnetization with scattering by a non-magnetic defect and the contribution of magnetic scattering (accompanied by spin-flip) in the local density of electron states are predicted.