Spin precession in a fractional quantum Hall state with spin-orbit coupling

TL;DR

This paper investigates the effects of spin-orbit coupling on spin precession within a fractional quantum Hall state, emphasizing the importance of many-body interactions for potential spintronics applications.

Contribution

It provides a many-body analysis of spin configurations in quantum Hall states with spin-orbit interaction, highlighting properties relevant for spin device development.

Findings

Certain spin properties are ideal for spin device applications.

Some limitations can be optimized for better device performance.

Many-body effects are crucial in understanding spin behavior in these systems.

Abstract

Experimental attempts to realize spin-devices based on concepts derived from single-particle theoretical approaches have not been very successful yet. This raises the fundamental question of whether inter-electron interactions can be neglected in planar electron-based spintronics devices. We report on our results of a many-body approach to the spin configuration in a quantum Hall state in the presence of Bychkov-Rashba type spin-orbit interaction. While some properties of this system are found to be ideally suited for exploitation in spin devices, others might seem to limit its applicability. The latter can however be optimized for device performance.