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Multiple Diode-Like Conduction in Resistive Switching SiOx-Based MIM Devices

Miranda, E; Mehonic, A; Blasco, J; Sune, J; Kenyon, AJ; (2015) Multiple Diode-Like Conduction in Resistive Switching SiOx-Based MIM Devices. IEEE Transactions on Nano Technology , 14 (1) pp. 15-17. 10.1109/TNANO.2014.2374232. Green open access

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Abstract

Filamentary conduction in resistive switching metal- insulator-metal devices is often modeled from the circuital viewpoint using diode-like structures with series resistances. We show in this letter which arrangement of diodes and resistances is compatible with experimental multilevel set and reset I-V characteristics in electroformed TiN/SiOx/TiN structures. The proposed model is based on the solution of the generalized diode equation corresponding to N diodes arranged in parallel with a single series resistance. The model is simple yet accurate and it is able to capture the essential features exhibited by the I-V curves in the low and high bias regimes, revealing that a single equation can deal with both the low and high resistance states. An exact expression for the differential conductance suitable for small-signal analysis and circuit simulators is also provided.

Type: Article
Title: Multiple Diode-Like Conduction in Resistive Switching SiOx-Based MIM Devices
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TNANO.2014.2374232
Publisher version: http://dx.doi.org/10.1109/TNANO.2014.2374232
Language: English
Additional information: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Metal-insulator-metal (MIM), resistive switching, SiOx
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/1456838
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