Electronic bipolar resistive switching behavior in Ni/VOx/Al device

In this paper, the Ni/VOx/Al resistive random access memory (RRAM) device is constructed and it shows bipolar resistive switching behavior, low resistive state (LRS) nonlinearity, and good retention. The set and reset processes are likely induced by the electron trapping and detrapping of trapping centers in the VOx films, respectively. The conduction mechanism in negative positive region are controlled by space charge limited current mechanism (SCLC)/Schottky emission. The temperature dependence of I-V curves for FIRS is measured to confirm the defects trapping and detrapping electrons model. activation energy was calculated to analyze the endurance performance of the device. The detailed analysis of the switching behavior with SCLC mechanism and Schottky emission mechanism could provide useful information for electronic bipolar resistive switching (eBRS) characteristics. (C) 2017 Elsevier B.V. All rights reserved.