Figure 3From: Tunable insulator-quantum Hall transition in a weakly interacting two-dimensional electron systemConverted σ xx ( B ) and σ xy ( B ) at various T ranging from 0.3 to 1.5 K. For (a) Vg = −0.125 V, (b) Vg = −0.145 V, and (c) Vg = −0.165 V. The insets show σxy(B) at T = 0.3 K and T = 16 K together with the fits to Equation 3 as indicated by the red lines. The vertical lines point out the crossings of σxx and σxy.Back to article page