Spin-dependent electron transport in waveguide with continuous shape

TL;DR

This paper investigates how the shape of a 2D waveguide influences spin-dependent electron transport, revealing that waveguide geometry and spin-orbit coupling modulate electron behavior and spin precession.

Contribution

It introduces a study of shape effects on spin transport in waveguides with spin-orbit coupling, highlighting shape-dependent spin precession and transition control.

Findings

Shape of waveguide affects spin precession

Constricted waveguides enable control of classical to tunneling transition

Spin-orbit coupling strength modulates electron transport regimes

Abstract

We study effects of the shape of a two-dimensional waveguide on the spin-dependent electron transport in the presence of spin-orbit coupling. The transition from classical motion to the tunneling regime can be controlled there by modulating the strength of spin-orbit coupling if the waveguide has a constriction. The spin precession strongly depends on the shape of the waveguide.