Engineering nonlinearity into memristors for passive crossbar applications

  • J. Joshua Yang
  • , M. X. Zhang
  • , Matthew D. Pickett
  • , Feng Miao
  • , John Paul Strachan
  • , Wen Di Li
  • , Wei Yi
  • , Douglas A.A. Ohlberg
  • , Byung Joon Choi
  • , Wei Wu
  • , Janice H. Nickel
  • , Gilberto Medeiros-Ribeiro
  • , R. Stanley Williams

Research output: Contribution to journalArticlepeer-review

194 Scopus citations

Abstract

Although TaO x memristors have demonstrated encouraging write/erase endurance and nanosecond switching speeds, the linear current-voltage (I-V) characteristic in the low resistance state limits their applications in large passive crossbar arrays. We demonstrate here that a TiO 2-x/TaO x oxide heterostructure incorporated into a 50 nm× 50 nm memristor displays a very large nonlinearity such that I(V/2) ≈ I(V)/100 for V ≈ 1 volt, which is caused by current-controlled negative differential resistance in the device.

Original languageEnglish
Article number113501
JournalApplied Physics Letters
Volume100
Issue number11
DOIs
StatePublished - 12 Mar 2012

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