Abstract
Measurements of current-voltage characteristics have been performed on (Formula presented) films for two components of electric fields in the (Formula presented) plane, (Formula presented) and (Formula presented) in magnetic fields of the form (Formula presented), where (Formula presented) the current density (Formula presented), (Formula presented) the (Formula presented) axis, and (Formula presented). The simultaneous measurements of (Formula presented) and (Formula presented) under these conditions make it possible to analyze the situation of the vortex motion due to the Lorentz force. Our results indicate that vortices move as long-range correlated lines only below the glass transition temperature in a low-current limit. We also show that applying high-current density destroys line motion and induces a structural change of vortex lines in the glass state.
| Original language | English |
|---|---|
| Pages (from-to) | R14291-R14294 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 56 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 1997 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics