Rare-earth oxides as artificial barriers in superconducting tunneling junctions

C. P. Umbach, A. M. Goldman, L. E. Toth

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Superconducting tunneling junctions have been prepared on Nb, Nb 3Ge, V3Si, ErRh4B4, and Au base electrodes with either Pb or In counterelectrodes using a barrier of oxidized Er or Lu. Nb/RE/oxide/Pb Josephson junctions with very low leakage have been studied in detail. The ease of fabrication and the stability of the junctions under thermal cycling suggest that they may have technological significance.

Original languageEnglish (US)
Pages (from-to)81-83
Number of pages3
JournalApplied Physics Letters
Issue number1
StatePublished - 1982

Bibliographical note

Copyright 2007 Elsevier B.V., All rights reserved.


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