The influence of water absorbed in grain boundary of a polycrystalline NiO layer on the memory characteristics of Pt/NiO/Pt Resistive Random Access Memory (ReRAM)

Ryosuke Ogata, Masataka Yoshihara, Naohiro Murayama, Satoru Kishida, Kentaro Kinoshita

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

We focused on the presence of water absorbed in the grain boundary of a polycrystalline transition metal oxide (TMO) film in an EL/poly-TMO/EL structure. The effect of supplying water to resistive random access memories (ReRAMs) of Pt/NiO/Pt structure on switching voltages and data retention characteristics was investigated. As a result, switching voltages were decreased by supplying water and reset switching was confirmed to be strongly induced by supplying water even at room temperature without applying voltage. These results suggest that water enhances resistive switching effect by providing reducing species and oxidizing species respectively such as H+ and OH-.

Original languageEnglish
JournalMaterials Research Society Symposium Proceedings
Volume1691
DOIs
Publication statusPublished - 2014
Event2014 MRS Spring Meeting - San Francisco, United States
Duration: 21 Apr 201425 Apr 2014

Keywords

  • memory
  • thin film
  • water

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