Field-induced water electrolysis switches an oxide semiconductor from an insulator to a metal : Natu
(a) A schematic illustration of the CAN-gated SrTiO 3 FET. (b) Cross-sectional TEM image of the CAN-gated SrTiO 3 FET (left panel). Scale bar is 100 nm. Trilayer structure composed of Ti /CAN/ SrTiO 3 is observed. Large amount of light spots are seen in t...