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Resistive Switching in Stabilized Zirconia Films Studied by Conductive Atomic Force Microscopy

Dmitry FilatovDmitry AntonovIvan AntonovAlexander KasatkinOleg Gorshkov

Research and Educational Center for Physics of Solid State Nanostructures,Lobachevsky State University of Nizhny Novgorod

摘要:We have applied Conductive Atomic Force Microscopy(CAFM) to study the microscopic mechanism of resistive switching in the ultrathin(3-5 nm) yttria stabilized zirconia(YSZ) films. Using CAFM, we were able to trace the growth of the individual conductive filaments, which are considered now to be responsible for the resistive switching effect in the transition metal oxides. The growth of the filaments has been proven to be initiated by the defects in the film material including the ones, which are the concentrators of the electric field, in particular, by the roughness(hillocks) of the film/substrate interface. The electron transport via individual filaments has been studied. Besides the butterfly-type hysteresis in the current-voltage(I-V) curves of the probe-to-sample contact typical for the bipolar resistive switching, we have observed the I-V curves with resonant peaks attributed to the resonant electron tunneling via the localized electron states in the filaments.
会议名称:

Workshop 1 2017

会议时间:

2017-01-03

会议地点:

泰国

  • 专辑:

    工程科技Ⅰ辑; 工程科技Ⅱ辑

  • 专题:

    材料科学; 工业通用技术及设备; 仪器仪表工业

  • 分类号:

    TB383.2;TH742

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