Figure 2.

Experimental resistive switching in the response to a neuron-like signal: (a) neural-like pulse. The blue, red, yellow, and green colors show, respectively, the curve segments increasing from 0 to $-$5 V, from $-$5 to 0 V, from 0 to 4 V, and 4 to 0; (b) I–V curves. Each colored I-V section corresponds to a colored section of the input signal to memristor; (c) increasing amplitude of the neuron-like signal. The red, purple, blue, green, light blue, and yellow curve corresponds, respectively, to the peak amplitude of 1.558 V, 2 V, 2.5 V, 3V, 3.5 V, and 4 V; (d) resistive switching of the memristive device under the action of corresponding neuron-like signals on the I-V curves. Each colored I–V curve corresponds to a colored curve of the input signal to memristor.