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The Influence of Water Absorbed in Grain Boundary of a Polycrystalline NiO Layer on the Memory Characteristics of Pt/NiO/Pt Resistive Random Access Memory (ReRAM)

Published online by Cambridge University Press:  19 August 2014

Ryosuke Ogata ,
Masataka Yoshihara ,
Naohiro Murayama ,
Satoru Kishida  and
Kentaro Kinoshita
Ryosuke Ogata
Affiliation:
Tottori University, Tottori 680-8550
Masataka Yoshihara
Affiliation:
Tottori University, Tottori 680-8550
Naohiro Murayama
Affiliation:
Tottori University, Tottori 680-8550
Satoru Kishida
Affiliation:
Tottori University, Tottori 680-8550 Tottori University Electronic Display Research Center, Tottori, 680-8550
Kentaro Kinoshita
Affiliation:
Tottori University, Tottori 680-8550 Tottori University Electronic Display Research Center, Tottori, 680-8550
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Abstract

We focused on the presence of water absorbed in the grain boundary of a polycrystalline transition metal oxide (TMO) film in an EL/poly-TMO/EL structure. The effect of supplying water to resistive random access memories (ReRAMs) of Pt/NiO/Pt structure on switching voltages and data retention characteristics was investigated. As a result, switching voltages were decreased by supplying water and reset switching was confirmed to be strongly induced by supplying water even at room temperature without applying voltage. These results suggest that water enhances resistive switching effect by providing reducing species and oxidizing species respectively such as H+ and OH-.

Keywords

memorythin filmwater
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1691: Symposium BB – Materials for End-of-Roadmap Devices in Logic, Power and Memory , 2014 , mrss14-1691-bb10-07
Copyright
Copyright © Materials Research Society 2014 

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