Inverse Proximity Effect in a Strongly Correlated Electron System

Olivier Bourgeois, Aviad Frydman, R. C. Dynes

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


An anomalous superconducting proximity effect between a strongly correlated electron system and a normal metal is demonstrated. The model system is a 2D ultrathin superconducting quench-condensed Pb film. Such a highly disordered film has a reduced transition temperature [Formula presented] due to the strong [Formula presented] interaction. Instead of weakening the superconductivity, an overlayer of Ag on Pb induces an increase of both the [Formula presented] and the gap. The restoration of the electron screening brought about by the quasiparticles from the normal metal can explain this striking inverse proximity effect.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number18
StatePublished - 2002


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