Fig. 2: False color map of inelastic neutron scattering (INS) spectra and calculated two-magnon density of state in RbFeCl3. | Nature Communications

Fig. 2: False color map of inelastic neutron scattering (INS) spectra and calculated two-magnon density of state in RbFeCl3.

From: Field control of quasiparticle decay in a quantum antiferromagnet

Fig. 2

a–l Magnetic field (H∥c-axis) dependences of false color maps for observed (a–f) and calculated (g–l) INS spectra. Red arrows in a–f indicate broadening linewidth. White arrows in e, f indicate magnons avoiding decay. White and red solid curves in g–l are one-magnon dispersion relations of ℏω1 and ℏω2 modes calculated using linear extended spin wave theory (LESW) using the best-fit parameters. The calculated spectra are convoluted by the instrumental resolution. m–r Two-magnon density of state (2M-DoS) calculated from one-magnon dispersion relations using LESW.

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