Spin liquid correlations in Nd-langasite anisotropic Kagomé antiferromagnet
Résumé
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 kagomé-like lattice of anisotropic Nd moments.
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