Multi-resistance states through electrically driven phase transitions in VO 2/HfO 2/VO 2 heterostructures on silicon

You Zhou, Zheng Yang, Shriram Ramanathan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We report on electrically induced multi-resistance states in VO 2/HfO 2/VO 2 heterostructures on silicon at room temperature. Through geometric confinement, the critical threshold voltage for the transition in each VO 2 layer can be tuned, and this leads to sharp current jumps as each layer undergoes a conductance transition. Consistent results are obtained in both voltage and current sweep conditions. The ability to realize variable resistance states in correlated oxide heterostructures fabricated on silicon could be of relevance to emerging information processing and storage schemes utilizing functional oxides.

Original languageEnglish (US)
Article number6095587
Pages (from-to)101-103
Number of pages3
JournalIEEE Electron Device Letters
Volume33
Issue number1
DOIs
StatePublished - Jan 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Keywords

  • Metal-insulator transition
  • phase-change materials
  • resistive memory
  • threshold switching
  • vanadium dioxide

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