Abstract
We report the first experimental results obtained by low-temperature scanning-electron microscopy on the spatial distribution of the maximum Josephson current in tunnel junctions. The experiments were performed with a nearly one-dimensional PbIn-PbBi window junction, its length being large compared to J. The spatial resolution is 1-2 m and is governed by the thermal healing length. In a parallel magnetic field the different vortex states have been clearly observed. The nonlocal effects due to the beam-induced change of the phase-difference function predicted by Chang et al. have also been confirmed.
| Original language | English |
|---|---|
| Pages (from-to) | 1448-1451 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 54 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1985 |
| Externally published | Yes |