Electronic spin precession in semiconductor quantum dots with spin-orbit coupling

TL;DR

This paper develops a theoretical model for electronic spin resonance in semiconductor quantum dots, highlighting how spin-orbit coupling, magnetic field, and Coulomb interactions influence spin precession.

Contribution

It introduces a comprehensive theory of spin resonance in quantum dots considering spin-orbit coupling and Coulomb interactions, with predictions on occupation and magnetic field dependence.

Findings

Spin resonance frequency depends strongly on spin-orbit coupling.

Coulomb interactions significantly modify spin precession.

Precession behavior varies with dot occupation and magnetic field.

Abstract

The electronic spin precession in semiconductor dots is strongly affected by the spin-orbit coupling. We present a theory of the electronic spin resonance at low magnetic fields that predicts a strong dependence on the dot occupation, the magnetic field and the spin-orbit coupling strength. Coulomb interaction effects are also taken into account in a numerical approach.