A chaotic circuit based on a physical memristor

L. Minati, L.V. Gambuzza, W.J. Thio, J.C. Sprott and M. Frasca

Chaos, Solitons & Fractals, 2020, vol. 138, issue C

Abstract: The memristor is a fundamental two-terminal electrical component unique in that it possesses the properties of non-linearity and memory, which are pervasive across natural systems. It has been proven to be in principle a viable substrate for novel dynamical systems showing chaotic behavior, but the recourse to abstract, idealized mathematical non-linearities throughout the existing literature hinders practical realization using physical devices. In this work, we realize a fully autonomous chaotic oscillator circuit based on self-directed channel memristors. Its architecture comprises two feedback loops, a linear one and a non-linear one involving the memristor. Low-dimensional chaotic dynamics are readily obtained experimentally using tungsten-based as well as carbon-based physical devices, despite their non-idealities. A mathematical model of the circuit, revealing further interesting non-linear features such as bifurcations without parameters, is also offered.

Keywords: Chaotic oscillator; Physical memristor; Self-directed channel memristor; Bifurcations (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (20)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:138:y:2020:i:c:s0960077920303891

DOI: 10.1016/j.chaos.2020.109990

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