Investigation of the electroforming process in resistively switching TiO_2 nanocrosspoint junctions

Nauenheim, C.; Rüdiger, A.; Kügeler, C.; Waser, R.

doi:10.1063/1.3367752

Journal Article

PreJuSER-9176

Investigation of the electroforming process in resistively switching TiO_2 nanocrosspoint junctions

Nauenheim, C.FZJ* ; Kügeler, C.FZJ* ; Rüdiger, A. ; Waser, R.FZJ*

2010
American Institute of Physics Melville, NY

Applied physics letters 96, 122902 (2010) [10.1063/1.3367752]

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Please use a persistent id in citations: http://hdl.handle.net/2128/17279 doi:10.1063/1.3367752

Abstract: We report on the electroforming in resistively switching nanocrosspoint devices made of a reactively sputtered TiO2 thin film between Pt and Ti/Pt electrodes, respectively. As most resistance switching materials, TiO2 needs to be electroformed before it can be switched. This paper presents and compares current and voltage controlled electroforming with regard to the polarity. We show that a current-driven electroforming with negative polarities leads into the switchable high resistive state without need for a current compliance. These devices show an improved stability and reliability in bipolar resistive switching performance.

Keyword(s): J ; electrical conductivity transitions (auto) ; electrical resistivity (auto) ; electroforming (auto) ; metal-semiconductor-metal structures (auto) ; nanostructured materials (auto) ; platinum (auto) ; semiconductor thin films (auto) ; titanium (auto) ; titanium compounds (auto)