Abstract
The triple sign reversal in the mixed-state Hall effect has been observed in ion-irradiated (Formula presented) thin films. The negative dip at the third sign reversal is more pronounced for higher fields, which is opposite to the case of the first sign reversal near (Formula presented) in most high-(Formula presented) superconductors. These observations can be explained by a recent prediction in which the third sign reversal is attributed to the energy derivative of the density of states and to a temperature-dependent function related to the superconducting energy gap. These contributions prominently appear in cases where the mean free path is significantly decreased, such as our case of ion-irradiated thin films.
| Original language | English |
|---|---|
| Pages (from-to) | 722-726 |
| Number of pages | 5 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 61 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2000 |
| Externally published | Yes |