摘要
Precise electrical manipulation of nanoscale defects such as vacancy nano-filaments is highly desired for the multi-level control of ReRAM. In this paper we present a systematic investigation on the pulse-train operation scheme for reliable multi-level control of conductive filament evolution. By applying the pulse-train scheme to a 3 bit per cell HfO 2 ReRAM, the relative standard deviations of resistance levels are improved up to 80% compared to the single-pulse scheme. The observed exponential relationship between the saturated resistance and the pulse amplitude provides evidence for the gap-formation model of the filament-rupture process.
原文 | English |
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頁(從 - 到) | 5698-5702 |
頁數 | 5 |
期刊 | Nanoscale |
卷 | 6 |
發行號 | 11 |
DOIs | |
出版狀態 | Published - 7 6月 2014 |