Figure 5: Thermopower and sheet resistance as a function of applied Vg.
From: Field-induced water electrolysis switches an oxide semiconductor from an insulator to a metal
Novel thermopower behaviour: V-shaped turnaround of S is seen, though Rxx (circle: before S measurement, square: after S measurement) decreases gradually as Vg increases, probably due to transition of electronic nature from 3D to 2D in the interface region.
