Nano LaAlO3 buffer layer-assisted tunneling current in manganite p–n heterojunction |
Rectifying characteristics (a) and semilogarithmic plots of the characteristics (c) of a LCMO/LAO/STON junction, and rectifying characteristics (b) and semilogarithmic plots (d) of the characteristics of a LCMO/STON junction, measured at different temperatures from 60 K to 360 K. (The inset of Fig. 2(a) shows the schematic diagram of the sample and electrical measurement.) |