Mannion, Daniel J;
Vu, Viet Cuong;
Ng, Wing H;
Mehonic, Adnan;
Kenyon, Anthony J;
(2023)
Unipolar potentiation and depression in memristive devices utilising the subthreshold regime.
IEEE Transactions on Nanotechnology
10.1109/tnano.2023.3284144.
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Abstract
We present a resistance switching device that exhibits analogue potentiation and depression of conductance under the same voltage polarity. This contrasts with previously studied devices that potentiate and depress under opposite polarities. We refer to this mode of operation as the subthreshold regime due to it occurring at voltage or current biases that are insufficient to produce discrete or non-volatile switching. This behaviour has the potential to reduce the complexity of neuronal and synaptic circuitry in neuromorphic computing by removing the need for voltage pulses of both positive and negative polarities. The characteristically long timescales may also help replicate bio-realistic timings. In this paper, we detail how to induce this unique behaviour, how to tune its properties to a desired response, and finally, we demonstrate one potential application.
| Type: | Article |
|---|---|
| Title: | Unipolar potentiation and depression in memristive devices utilising the subthreshold regime |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/tnano.2023.3284144 |
| Publisher version: | https://doi.org/10.1109/TNANO.2023.3284144 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Voltage, Depression, Transient analysis, Gold, Contacts, Electric potential, Synapses |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10171797 |
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