Weak antilocalization and interaction-induced localization of Dirac and Weyl Fermions in topological insulators and semimetals
Lu Hai-Zhou1, Shen Shun-Qing2
       

A schematic demonstration of the change of conductivity Δσ as a function of temperature T. We choose cee = cqi. Tc is the critical temperature below which the conductivity drops with decreasing temperature. Adapted from Ref. [24].