Spin liquid correlations in Nd-langasite anisotropic Kagom\'e antiferromagnet

TL;DR

This study reveals that Nd-langasite exhibits spin liquid behavior with unique dispersive magnetic correlations, demonstrated through inelastic neutron scattering, indicating a highly frustrated kagomé-like antiferromagnetic system.

Contribution

First direct observation of dispersive spin liquid correlations in an anisotropic kagomé antiferromagnet using neutron scattering.

Findings

Ring-shaped scattering signal in reciprocal space.

Dispersive features consistent with spin liquid models.

Evidence of inherent frustration in Nd-langasite's magnetic lattice.

Abstract

Dynamical magnetic correlations in the geometrically frustrated Nd$\_3$Ga$\_5$SiO$\_{14}$ compound were probed by inelastic neutron scattering on a single crystal. A scattering signal with a ring shape distribution in reciprocal space and unprecedented dispersive features was discovered. Comparison with calculated static magnetic scattering from models of correlated spins suggests that the observed phase is a spin liquid inherent to an antiferromagnetic kagom\'e-like lattice of anisotropic Nd moments.