我们调查了炮轰的 SrTi0.993Nb0.007O3/In 夹的 Au/Ar+ 的抵抗切换特征。有打扫电压的抵抗切换极性的进化被观察。我们的实验证明在一个宏观的电极下面,同类的 trapping-detrapping-type 传导和细丝类型传导共存并且与对方竞争。为一个大大规模电压范围, trapping-detrapping-type 传导统治。然而,为一个小范围,后者统治。如果偏爱电压太大,细丝传导能被破坏。这些结果将帮助加深抵抗切换极性的理解,并且将帮助未来设备设计。
We investigated the resistive switching characteristics of Au/Ar^+ bombarded SrTi0.993Nb0.007O3/ln sandwiches. The evolution of the resistive switching polarity with sweeping voltage was observed. Our experiments showed that under a macroscopic electrode the homogeneous trapping-detrapping-type conduction and filament-type conduction coexist and compete with each other. For a large sweeping voltage range, the trapping-detrapping-type conduction dominates. However, for a small range the latter dominates If the bias voltage is too large, the filament conduction could be destroyed. These results will help deepen the understanding of the resistive switching polarity, and will aid in future device design.