Probing the superconducting proximity effect in nbse2 by scanning tunneling microscopy

S. H. Tessmer, M. B. Tarlie, D. J. Van Harlingen, D. L. Maslov, P. M. Goldbart

Research output: Contribution to journalArticlepeer-review


Cryogenic scanning tunneling microscopy has been used as a local probe of the superconducting proximity effect across a normal metal-superconductor interface of a short coherence length superconductor. Both the topography and the local electronic density of states were measured on a superconducting NbSe2 crystal decorated with nanometer-size Au islands. The presence of a quasiparticle bound state could be inferred even when the probe was located directly on the bare NbSe2 surface near an Au island, indicating a severe depression of the pair potential inside the superconductor due to the proximity effect.

Original languageEnglish (US)
Pages (from-to)924-927
Number of pages4
JournalPhysical review letters
Issue number5
StatePublished - 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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