Figure 3
(a) The magnetoconductivity of a representative Bi2Se3 thin film with the t = 36 nm in low-field range at various temperatures. The red solid lines are the theoretical fits. (b) The extracted parameters α and Lϕ versus temperature. (c) The extracted α as a function of t at 2 K. (d) 
as a function of temperature for Bi2Se3 thin films with different thicknesses. The red solid lines are the fits by using Eq. (2) and the blue solid lines are the fits with the relation Lϕ ∝ T−1/2.
