Abstract
The nonlinear I-V characteristics below the superconducting transition of high-sheet-resistance Hg-Xe films have been analyzed with use of a model in which the nonlinearity is a consequence of current-induced vortex-antivortex unbinding. The characteristics can be fitted by V∼Ia(T), where a(T) is a measure of the a real superelectron density ns (T). The universal relations predicted for the Kosterlitz-Thouless-Berezinskii transition in two dimensional superconducting films are obeyed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 534-537 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 47 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1981 |