Identification of the controlling parameter for the set-state resistance of a TiO2 resistive switching cell

This study examined the parameter controlling the set-state resistance (Rset) of a Pt/TiO2/Pt resistive switching (RS) cell in unipolar RS mode. Although the compliance current in the current-voltage sweep had some effect on the Rset, the uncontrolled flow of charge from the parametric analyzer prev...

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Bibliographic Details
Published in:Applied physics letters 2010-03, Vol.96 (11)
Main Authors: Song, Seul Ji, Kim, Kyung Min, Kim, Gun Hwan, Lee, Min Hwan, Seok, Jun Yeong, Jung, Ranju, Hwang, Cheol Seong
Format: Article
Language:English
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Summary:This study examined the parameter controlling the set-state resistance (Rset) of a Pt/TiO2/Pt resistive switching (RS) cell in unipolar RS mode. Although the compliance current in the current-voltage sweep had some effect on the Rset, the uncontrolled flow of charge from the parametric analyzer prevented making an accurate estimation of the parameters. The current transient in pulse switching observed using a high-speed digital oscilloscope and physical modeling showed that the capacitive charge moves vigorously at the moment of on-switching, and Rset is governed by the level of migrating charge. The actual switching time was ⪡50 ns.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3355415