Static impurities in the S=3/2 kagome lattice

TL;DR

This study investigates how static impurities affect the magnetic properties of the S=3/2 kagome lattice, revealing extended regions of altered spin correlations without local moment formation, using exact diagonalization methods.

Contribution

It provides the first detailed analysis of impurity effects in the S=3/2 kagome lattice, highlighting similarities to the S=1/2 case and discussing experimental implications.

Findings

Extended regions of altered spin correlations near impurities

No evidence of local moment formation around vacancies

Implications for local probe measurements in S=3/2 kagome materials

Abstract

We consider the effects of doping the S=3/2 kagome lattice with static, nonmagnetic impurities. By exact diagonalization calculations on small clusters we deduce the local spin correlations and magnetization distribution around a vacancy. As in the S=1/2 kagome lattice, in the vicinity of the impurity we find an extended region where the spin correlations are altered as a consequence of frustation relief, and no indications for the formation of local moments. We discuss the implications of our results for local probe measurements on S=3/2 kagome materials.