Nature - USA (2020-08-20)

Extended Data Fig. 5 | Electric characterization of the Au/Nb:Ba0.6Sr0.4TiO 3 junction. a, Temperature-dependent dielectric constant of the insulating
Ba0.6Sr0.4TiO 3 ceramic. b, Current density–voltage curve. c, Capacitance–voltage curve of the Au/Nb:Ba0.6Sr0.4TiO 3 junction.