Fig. 2: Nature of the switching threshold (Device A-1M KCl).
From: Nanofluidic logic with mechano–ionic memristive switches
a, I–V characteristics for different applied sinusoidal potential amplitudes (A). The applied bias frequency is 50 mHz. b, Device switching at different frequencies of the applied positive sinusoidal bias voltage with an amplitude of 1 V. The dots are individual data points. The shaded area represents the charge threshold \(Q=\int\nolimits_{0}^{\tau }I(t){\mathrm{d}}t\), where I(t) is the measured current. This quantity is conserved across frequencies. c, Dependence of the conductance on the cumulative amount of charge, \(q(t)=\int\nolimits_{0}^{t}I(t){\mathrm{d}}t\) flowing out of the device, extracted from b. The conductance is the instantaneous current/voltage ratio. The conductance abruptly increases when the charge threshold is reached. Here, the charge threshold is approximately equal to 50 nC. Inset, frequency dependence of the amount of charge Q flowing out of the device before reaching the threshold.
