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Impacts of Temperature and Moisture on the Resistive Switching Characteristics of a Cu-Ta2O5-Based Atomic Switch

Published online by Cambridge University Press:  17 May 2012

Tohru Tsuruoka ,
Tsuyoshi Hasegawa ,
Kazuya Terabe  and
Masakazu Aono
Tohru Tsuruoka
Affiliation:
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Chiyoda-ku, 102-0075, Japan.
Tsuyoshi Hasegawa
Affiliation:
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Chiyoda-ku, 102-0075, Japan.
Kazuya Terabe
Affiliation:
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan.
Masakazu Aono
Affiliation:
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan.
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Abstract

The effects of temperature and moisture on the resistive switching characteristics of oxide-based atomic switches were investigated to reveal their switching mechanism. The observed temperature variations of the SET voltages can be qualitatively explained by the classical nucleation theory. The moisture absorption in oxides results in the formation of a hydrogen-bond network at grain boundaries, and metal ions are likely to migrate along the grain boundaries. Depending on the strength of hydrogen bonds in oxides, the atomic switches exhibit a different switching behavior to ambient conditions.

Keywords

memoryoxideionic conductor
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1430: Symposium E – Materials and Physics of Emerging Nonvolatile Memories , 2012 , mrss12-1430-e06-06
Copyright
Copyright © Materials Research Society 2012

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References

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