We have fabricated multi-terminal superconductor/normal metal/superconductor junctions comprising superconductor Nb and normal metal Cu. By means of the local and non-local measurements of the junction, we successfully detected the non-existence of a bias current in the Cu wire and the non-local voltage. These results indicate that the current flowing non-locally over the junction is due to the proximity effects and the conversion of the supercurrent and normal current.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics