Circularly Polarized Resonant Rayleigh Scattering and Skyrmions in the $\nu$ = 1 Quantum Hall Ferromagnet

TL;DR

This study demonstrates that circularly polarized resonant Rayleigh scattering effectively probes Skyrmion spin textures in the quantum Hall ferromagnet at filling factor one, revealing polarization-dependent scattering linked to spin excitations.

Contribution

It introduces the use of RRS to investigate Skyrmion spin textures in quantum Hall states, highlighting polarization-dependent effects and the method's validity.

Findings

Right-handed RRS probes Skyrmion spin textures

Left-handed RRS shows no resonance, indicating polarization dependence

RRS correlates with Skyrmionic effects, screening, and spin waves

Abstract

We use the circularly polarized resonant Rayleigh scattering (RRS) to study the quantum Hall ferromagnet at $\nu$ = 1. At this filling factor we observe a right handed copolarized RRS which probes the Skyrmion spin texture of the electrons in the photoexcited grounds state. The resonant scattering is not present in the left handed copolarization, and this can be related to the correlation between Skymionic effects, screening and spin wave excitations. These results evidence that RRS is a valid method for the study of the spin texture of the quantum Hall states.