Abstract
An anomalous superconducting proximity effect between a strongly correlated electron system and a normal metal was studied. Measurements were conducted simultaneously on Pb/Ag bilayers and on Al/Al2O3/Pb/Ag tunnel junctions by using four point probe technique in a pumped 4He cryostat. It was found that an overlayer of Ag on Pb induced an increase in transition temperature and the gap instead of weakening in the superconductivity.
| Original language | English |
|---|---|
| Article number | 186403 |
| Pages (from-to) | 1864031-1864034 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 18 |
| State | Published - 6 May 2002 |
| Externally published | Yes |