Modeling of the Hysteretic [Formula Omitted] Characteristics of [Formula Omitted]-Based Resistive Switches Using the Generalized Diode Equation

An equivalent circuit representation for the conduction characteristics of [Formula Omitted]-based resistive switches based on the generalized diode equation is reported. The proposed model consists of two antiparallel diodes with series and parallel resistances representing the filamentary current...

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Bibliographic Details
Published in:IEEE electron device letters 2014-03, Vol.35 (3), p.390
Main Authors: Blasco, Juli, Ghenzi, Nestor, Suae, Jordi, Levy, Pablo, Miranda, Enrique
Format: Article
Language:English
Online Access:Get full text
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Summary:An equivalent circuit representation for the conduction characteristics of [Formula Omitted]-based resistive switches based on the generalized diode equation is reported. The proposed model consists of two antiparallel diodes with series and parallel resistances representing the filamentary current pathway spanning the oxide layer and the possible parasitic conduction effects. The model accounts for the pulse-induced hysteretic behavior exhibited by the [Formula Omitted] characteristic after electroforming. Three different approaches, each one of them with increased complexity, are assessed: 1) constant; 2) nanowire-like; and 3) sigmoidal diode amplitude. In all cases, the logarithmic conductance of the diodes is modeled using a logistic-type threshold function. [PUBLICATION ABSTRACT]
ISSN:0741-3106
1558-0563
DOI:10.1109/LED.2014.2297992