The observation of the ac josephson effect in a YBa2Cu3O7/Au/YBa2Cu3o7 junction

D. B. Schwartz, P. M. Mankiewich, R. E. Howard, L. D. Jackel, B. L. Straughn, E. G. Burkhart, A. H. Dayem

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Abstract

We have demonstrated proximity effect coupling between a high transistion temperature superconductor and a normal metal. In a device with a 1 µ long gap in a YBa2Cu307 film spanned by a Au shunt we have observed a de supercurrent and the ac Josephson effect under microwave irradiation from 2GHz to 15GHz. Preliminary work has also begun with Ag shunts. These high quality S-N interfaces should be applicable both to probing the superconducting state in oxide superconductors and to building high Tc electronic devices.

Original languageEnglish (US)
Pages (from-to)1298-1300
Number of pages3
JournalIEEE Transactions on Magnetics
Volume25
Issue number2
DOIs
StatePublished - Mar 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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