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 language | English (US) |
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Article number | 6095587 |
Pages (from-to) | 101-103 |
Number of pages | 3 |
Journal | IEEE Electron Device Letters |
Volume | 33 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2012 |
Externally published | Yes |
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