On-demand nanodevice with electrical and neuromorphic multifunction realized by local ion migration

Rui Yang, Kazuya Terabe, Guangqiang Liu, Tohru Tsuruoka, Tsuyoshi Hasegawa, James K. Gimzewski, Masakazu Aono

Research output: Contribution to journalArticlepeer-review

129 Citations (Scopus)

Abstract

A potential route to extend Moore's law beyond the physical limits of existing materials and device architectures is to achieve nanotechnology breakthroughs in materials and device concepts. Here, we discuss an on-demand WO3-x-based nanoionic device where electrical and neuromorphic multifunctions are realized through externally induced local migration of oxygen ions. The device is found to possess a wide range of time scales of memorization, resistance switching, and rectification varying from volatile to permanent in a single device, and these can furthermore be realizable in both two- or three-terminal systems. The gradually changing volatile and nonvolatile resistance states are experimentally demonstrated to mimic the human brain's forgetting process for short-term memory and long-term memory.We propose this nanoionic device with its on-demand electrical and neuromorphic multifunction has a unique paradigm shifting potential for the fabrication of configurable circuits, analog memories, digital-neural fused networks, and more in one device architecture.

Original languageEnglish
Pages (from-to)9515-9521
Number of pages7
JournalACS Nano
Volume6
Issue number11
DOIs
Publication statusPublished - 2012 Nov 27
Externally publishedYes

Keywords

  • memorization
  • nanoionic device
  • neuromorphic properties
  • rectification
  • resistance switching

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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