In this letter,bilayered Cu2 O /CuO thin films were grown on Nb doped SrTiO3( Nb: STO) substrates by plasma assisted molecular beam epitaxy. The current-voltage characteristics of Pt /Cu2 O /CuO /Nb: STO devices show reproducible and pronounced current-voltage hysteresis which was induced by the CuO /Nb: STO junctions. The device can be used as information stora...