On the mechanism of creating pinched hysteresis loops using a commercial memristor device

Majzoub S.
Elwakil A.S.
Psychalinos C.
Maundy B.J.

In this short communication we analyze the impact of signal harmonics on the formation of the pinched hysteresis loop using a commercial memristor device. We show that by using only the fundamental frequency and the second harmonic components, extracted from the measured electrical current signal, a distortion-less pinched hysteresis loop is re-created. This loop is then used to simulate memristor-based AND/OR gates without any loss in digital functionality. This verifies that the generation of a pinched hysteresis loop requires a nonlinear frequency doubling mechanism to create a second harmonic in the current signal from an applied single frequency voltage excitation. Obtaining a pinched loop with three pinch points from the experimentally measured data is also demonstrated. © 2019 Elsevier GmbH