Reduction in reset current of unipolar NiO-based resistive switching through nickel interfacial layer

The role of interface between electrode and NiO on switching characteristics has been investigated for unipolar NiO-based resistive switching. The ten time reduction of reset current could be achieved relative to a few milliamperes in many literatures by inserting a thin nickel interfacial layer between cathodic electrode and NiO. A model describing the reduction of reset current mechanism was derived from the combination effect of oxygen vacancy formation/migration and the interfacial oxide layer at cathodic electrode.