Bistable non-volatile elastic membrane memcapacitor exhibiting chaotic behavior

TL;DR

This paper introduces a bistable elastic membrane memcapacitor capable of non-volatile memory storage, exhibiting hysteresis and chaotic behavior under certain AC voltage conditions, with potential applications in nonautonomous chaotic circuits.

Contribution

It presents a novel design of a memcapacitor using a strained elastic membrane that can switch states reliably and exhibits chaotic dynamics.

Findings

Demonstrated reliable switching between capacitance states with voltage pulses.

Observed hysteresis in charge-voltage and capacitance-voltage characteristics.

Identified chaotic behavior in the system under specific AC voltage amplitudes and frequencies.

Abstract

We suggest a realization of a bistable non-volatile memory capacitor (memcapacitor). Its design utilizes a strained elastic membrane as a plate of a parallel-plate capacitor. The applied stress generates low and high capacitance configurations of the system. We demonstrate that a voltage pulse of an appropriate amplitude can be used to reliably switch the memcapacitor into the desired capacitance state. Moreover, charged-voltage and capacitance-voltage curves of such a system demonstrate hysteresis and transition into a chaotic regime in a certain range of ac voltage amplitudes and frequencies. Membrane memcapacitor connected to a voltage source comprises a single element nonautonomous chaotic circuit.