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arXiv · 2010.14138

A memristive model for graphene emitters: hysteresis and self-crossing

D. V. Gorodetskiy·S. N. Shevchenko·A. V. Gusel'nikov·A. V. Okotrub
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Abstract

Hysteresis exhibited by current-voltage characteristics during field-emission experiments is often considered undesirable in terms of practical applications. However, this is an appealing effect for the purposes of memristive devices. We developed a two-stage model to describe hysteretic characteristics, with a particular focus on the system which includes a cathode made of a single-layered graphene sheet on a substrate. In addition to hysteresis, the current-voltage curves display also an unusual self-crossing behavior. The presented memristive model can be used for quantitative descriptions of different hysteretic characteristics such as abrupt changes and self-crossings and for understanding (and modeling) the processes associated with field emission from plane graphene emitters.

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D. V. Gorodetskiy, S. N. Shevchenko, A. V. Gusel'nikov, A. V. Okotrub. 2020-10-27. A memristive model for graphene emitters: hysteresis and self-crossing. https://doi.org/10.1002/pssb.202000020

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