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The lobe area of pinched hysteresis loop of the potassium ion-channel memristor computed at different frequencies and temperatures [T = 0.3 °C (pink downtriangle), T = 6.3 °C (orange uptriangle), T = 16.3 °C (violet circle) and T = 26.3 °C (cyan square)]. a The first quadrant; b The third quadrant. (Color figure online)
