Figure 4

(a) Typical bipolar resistive switching characteristics of the S1 devices. Cumulative probability of (b) leakage current and (c) formation voltage for randomly measured many S1 and S2 devices.

(a) Typical bipolar resistive switching characteristics of the S1 devices. Cumulative probability of (b) leakage current and (c) formation voltage for randomly measured many S1 and S2 devices.