Figure 4: Insulating state of multilayer ReS2 at high carrier densities.
From: Disorder engineering and conductivity dome in ReS2 with electrolyte gating

(a) Reduced activation energy w as a function of lnT. Red and blue dashed lines correspond to variable range hopping (VRH) and multiphonon hopping (MPH) regimes, respectively. (b) Fits for MPH (left) and VRH (right) in the corresponding range of temperatures.