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

Seul Ji Song, Kyung Min Kim, Gun Hwan Kim, Min Hwan Lee, Jun Yeong Seok, Ranju Jung, Cheol Seong Hwang

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number112904
JournalApplied Physics Letters
Volume96
Issue number11
DOIs
Publication statusPublished - 2010

Bibliographical note

Funding Information:
The authors acknowledge the support of the National Research Program for the Nano Semiconductor Apparatus Development sponsored by the Korea Ministry of Knowledge and Economy, the National Program for 0.1Terabit NVM Devices, Korea Research Foundation grant (MOEHRD, Basic Research Promotion Fund, KRF-2008-C00029), a National Research Foundation of Korea (2009-0081961), and World Class University program (R31-2008-000-10075-0) through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science, and Technology.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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