Abstract :
By employing the perovskite-structured stannates and manganites, p-La0.67Ca0.33MnO3/i-SrSnO3/n-La0.03Sr0.97SnO3 junctions were fabricated on SrTiO3(001) substrates by pulsed laser deposition technique. The current–voltage curves indicate an excellent rectifying property of the heterojunction in the measurement temperatures from 310 to 10 K. A crossover from negative to positive of magnetoresistance with bias voltage was observed, which was explained by the transport mechanism of diffused electrons.
