Xiongfeng Wang, W. Liao, T. Rao, Yuanliang Zhou, Yuankang Chen, Yudong Pang, Xiaopei Chen, Guocheng Bao
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Resistive Switching in Sputtered ZnO/IGZO Heterostructure Memristor
Owing to the reversible resistive switching behavior, memristor possesses great potential in non-volatile memory application. In this work, we proposed a ZnO/IGZO heterostructure based memristor, which shows a typical bipolar resistive switching behavior under different compliance current and a high HRS/LRS ratio of 108, rendering it suitable for nonvolatile memory. Space-Charge-Limited Conduction (SCLC) mechanism is found suitable for understanding the current conduction while the diffusion of oxygen vacancies between the two dielectric layers leads to the resistive switching behavior.
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