Abstract
We investigated the effect of an electric-pulse on the insulator-metal phase transition of VO2/Al2O3 films using synchrotron-based infrared microspectroscopy. By monitoring the time-resolved optical response, we could demonstrate that local conducting areas are formed under the influence of the electric-pulse, and the Joule heat generated from the local current flow drives a consecutive thermal phase transition in the adjacent sample area.
| Original language | English |
|---|---|
| Pages (from-to) | 443-445 |
| Number of pages | 3 |
| Journal | Infrared Physics and Technology |
| Volume | 51 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2008 |
Keywords
- Infrared microspectroscopy
- Joule heating
- Local conducting path
- Resistance switching
- Vanadium dioxide