Fig. 2: Drude-Lorentz fit and theoretical calculations.
From: Electronic correlations and partial gap in the bilayer nickelate La3Ni2O7
a The measured σ1(ω) of La3Ni2O7 at 150 K (cyan solid curve) and the Drude-Lorentz fitting result (black dashed line). The fitting curve is decomposed into two Drude components (red and blue shaded areas) and a series of Lorentz components L1 (green hatched area), L2 (orange hatched area), L3 (cyan hatched area), L4 (purple hatched area) and LH (grey hatched area). The inset shows an enlarged view of the fitting result in the low-frequency range. b The calculated electronic band structure for La3Ni2O7. c The calculated σ1(ω) of La3Ni2O7. d \({K}_{\exp }/{K}_{{{\rm{band}}}}\) for La3Ni2O7 (solid star) and some other representative materials. \({K}_{\exp }/{K}_{{{\rm{band}}}}\) for other materials are taken from Ref. 32 and the references cited therein.
