Journal Article

PreJuSER-5735

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Abnormal bipolar-like resistance change behavior induced by symmetric electroforming in Pt/TiO2/Pt resistive switching cells

Jeong, D. S.FZJ* ; Schroeder, H.FZJ* ; Waser, R.FZJ*

2009
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/0957-4484/20/37/375201

Abstract: Abnormal bipolar-like resistive changes are reported in TiO(2) thin films sandwiched between Pt top and bottom electrodes. The abnormal behavior is shown relying on the applied voltage range. That is, normal bipolar switching is also shown in the same sample with the optimized voltage range. In the abnormal mode, both set- and reset-like changes in resistance take place under the same polarity of the applied voltage. This abnormal behavior is considered to be due to symmetric electroforming which is assumed to activate electrochemical reactions involving oxygen vacancies at both Pt/TiO(2) interfaces. We analyze the abnormal behavior in terms of the interfacial resistive switching taking place on both interfaces nearly simultaneously.

Keyword(s): Electrochemistry: methods (MeSH) ; Electrodes (MeSH) ; Nanotechnology: methods (MeSH) ; Platinum: chemistry (MeSH) ; Titanium: chemistry (MeSH) ; titanium dioxide ; Platinum ; Titanium ; J

Note: One of the authors (DSJ) would like to thank the Deutscher Akademischer Austausch Dienst (DAAD) for the scholarship supporting his research at the Forschungszentrum Julich GmbH.

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Contributing Institute(s):

1. Elektronische Materialien (IFF-6)
2. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2009

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