Figure 3.

Schematic illustration of switching operation of the Cu-NP sample. (a) Initial stage of the forming process. (b) Middle stage of the forming process. (c) After the forming process. (d) The RESET process. (e) The SET process.

Liu et al. Nanoscale Research Letters 2013 8:156   doi:10.1186/1556-276X-8-156
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