Fig. 2: Effective number of electrons in MoS₂.

a Our calculations of the evolution of the effective number of electrons (N_eff) contributing to the absorption bands from our 300 K and 77 K data. N_eff are computed from both ε₂ (solid lines) and the loss function (dashed lines). b The n_eff at 45 eV from our calculations using our data along with the predicted n_eff of 20.2 shown as the dashed line. c The effective mass of electrons as a function of temperature under the constraints of n_eff = 20.2 and ε_b = 1.043. d The high energy normalisation of the MoS₂ data at 300 K up to 100 eV compared with the Henke data in this range.