Fig. 3: Inelastic neutron scattering data and calculations for YbCl3.
From: Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
a–e Measured at 0.24 K using the CNCS instrument. f Measured at 3.7 K. Black points are the locations of the absolute peak intensity at different wave vectors. The solid black line is the fitted spin-wave dispersion with a single interaction J = 0.421(5) meV. The dashed red line is the calculated upper boundary of the corresponding two-magnon continuum scattering. g–k Linear spin-wave calculations of the transverse spectrum for interactions J = 0.42(1) meV, \(J^{\prime} =0.43(1)\) meV, and Jc = 0 meV, as described in the text. Data in (a)–(f) have been averaged about the H = 0 and K = 0 axes.
