Fig. 4: Electrical impedance spectroscopy measurements of a whole-cell EGaIn tube memristor.
From: EGaIn tube memristors offering reliable switching on a biological time scale
a I−V relationships from 2 consecutive cycles (sweep rate: 50 mV/s) for a device containing 3 M NaOH. Electrical impedance magnitude (top) and phase (bottom) versus frequency during sequential voltage increases (b) and decreases (c) between 0 and  + 0.7 V. d Equivalent circuit used to fit the EIS data. e Low-frequency resistance (R2) versus voltage during quasi-state forward and reverse sweeps.
