Coexistence of unipolar and bipolar modes in Ag/ZnO/Pt resistive switching memory with oxygen-vacancy and metal-Ag filaments

Ma Han-Lu, Wang Zhong-Qiang^†,, Xu Hai-Yang^‡,, Zhang Lei, Zhao Xiao-Ning, Han Man-Shu, Ma Jian-Gang, Liu Yi-Chun

Typical I–V curves of HRS and LRS for (a) URS and (b) BRS modes in log–log scale. (c) and (d) Temperature dependences of LRS state for URS and BRS modes, respectively.