Fig. 11: Energy cuts of the magnetic excitation spectrum in K2Co(SeO3)2 in a magnetic field.
From: Wannier states and spin supersolid physics in the triangular antiferromagnet K2Co(SeO3)2
Magnetic field evolution of the neutron scattering intensity in K2Co(SeO3)2, as measured at the LET spectrometer with Ei = 2.15 meV, as a function of energy transfer at the (a–d) K point and (e–h) M point. A magnetic field of μ0H = 0, 0.25, 0.5, and 0.75 T, respectively, is applied along the crystallographic c axis. The spectra have been averaged over equivalent wave vectors accessible in the experiment. The spectra measured at 7 T have been subtracted to remove the background from the sample environment. Note in (d) the scattering near 0.4 meV is spurious and due to imperfect backbround subtraction. The scale on the y-axis is linear. The shaded Gaussians represent the calculated energy resolution. The solid lines represent QMC calculations for Szz(q, ω) only. An arbitrary global scale factor is applied to match the intensity of the M point at H = 0. The dashed lines are fits to the elastic peak.
