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Dr Themis Prodromakis

University of Southampton
Nano Group, Southampton Nanofabrication Centre
Southampton, SO17 1BJ, UK
+44 (0)23 8059 8803
t.prodromakis@soton.ac.uk
 

A Memristor SPICE Model Accounting for Volatile Characteristics of Practical ReRAM

Authors: Radu Berdan, Chuan Lim, Ali Khiat, Christos Papavassiliou and Themistoklis Prodromakis

Published by: IEEE ELECTRON DEVICE LETTERS, VOL. 35, NO. 1, JANUARY 2014

Realizing large-scale circuits utilizing emerging nanoionic devices known as memristors depends on the accurate modeling of their behavior under a wide range of biasing conditions. Currently, no available SPICE memristor model accounts for both nonvolatile and volatile resistive switching characteristics, the coexistence of which has been recently demonstrated to manifest on practical ReRAM. In this letter, we present a new memristor SPICE model that introduces volatile effects, which can render a rate-dependent bipolar nonvolatile switching operation. The model is demonstrated via a number of simulation cases and is benchmarked against measured results acquired by solid-state TiO2 ReRAM.

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