Fig. 2: Angular dependence of magnetic excitations in two polarizations.
From: Bosonic spinons in anisotropic triangular antiferromagnets

a, b Angular dependence of magnetic excitations measured at T = 4.3 K in (bθ) and (θθ) polarization configurations. Phonon modes are subtracted to obtain the magnetic continuum. c, d Color plots of the magnetic Raman scattering intensity in the angle-Raman-shift plane in (bθ) and (θθ) polarizations. e, f Polar plots of the integrated intensity of a two-pair spinon–antispinon continuum. The solids lines are fits to a cos2θ dependence, obeying the A1 symmetry. g, h Relative intensity of the triplon IT/(IS + IT) and spinon IS/(IS + IT) components as a function of angle. The solid line is modeled to a function of sin4θ + constant.