Tunneling spectroscopy of superconducting Y1-xPrxBa2Cu3O7thin films

M. Covington, F. Xu, C. A. Mirkin, W. L. Feldmann, L. H. Greene

Research output: Contribution to journalArticlepeer-review


A systematic study of the conductance of Y1-xPrxBa2Cu3O7Pb planar tunnel junctions as a function of Pr concentration, x, and crystallographic orientation is presented. For fixed Pr concentration, the tunneling conductance is the same when tunneling into (100)-, (110)-, and (103)-oriented films, but qualitatively different than tunneling into (001)-oriented films. In addition, the gap-like feature energy (~2kBTc) scales with Tc but only when tunneling in the ab-plane direction. An ongoing experiment characterizing a novel tunnel junction fabrication technique using self-assembled monolayers as insulating tunnel barriers is also discussed.

Original languageEnglish (US)
Pages (from-to)1341-1342
Number of pages2
JournalCzechoslovak Journal of Physics
Issue numberSUPPL. 3
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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