作者: Gang Du , Tao Li , Chao Wang , Bin Fang , Baoshun Zhang
DOI: 10.1088/0022-3727/48/22/225301
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摘要: The variation of forming-free resistive switching (RS) characteristics modulated by thermal annealing was investigated in ZrO2 films fabricated electron beam evaporation. A typical behavior with pristine resistance comparable to that the high state (HRS) observed as-deposited devices. Whereas, further reduced a initial even lower than low (LRS) after N2 ambient and larger ratio verified annealed Both devices exhibited stable bipolar RS without any forming step, which has great potential for memory applications. possible mechanism associated adjusting oxygen vacancy formation migration proposed explain these distinct behaviors. It is expected controllable improved device performance may be obtained optimizing distribution density vacancies via post-annealing.