Fig. 3: Dispersion of magnetic excitations in CeCu2Si2.
From: High-energy magnetic excitations from heavy quasiparticles in CeCu2Si2
a Energy-[H, H, 1.48] map at T = 1.6 K obtained by binning data with 1.38 < L < 1.58. b Theoretical energy-[H, H, 0.5] maps obtained from RPA calculations using our LDA+U band structure. c Comparison of experimental and theoretical dispersions, with the theoretical dispersion scaled down by the band renormalization factor r. d Dispersion of electron-like bands along the [kx, ky = kx, kz] direction. Data in this figure were measured using E = 5 meV. All horizontal error bars are least-square fit errors of 1 s.d.
