Small-area high-current-density Josephson junctions

R. E. Howard, E. L. Hu, L. D. Jackel, L. A. Fetter, R. H. Bosworth

Research output: Contribution to journalArticle

35 Scopus citations


Josephson junctions with areas of ∼10-9 cm2 and current densities of 105 A/cm2 are described. The junctions were patterned using a combination of optical lithography and oblique evaporation techniques. The junction width is limited by the lithographic resolution to about 1 μm. The junction length is determined essentially by the base-electrode film thickness and can be as small as 1000 Å. The moderate (∼10 Ω) normal resistances of these junctions combined with their short intrinsic RC times gives them potential for application in nonlatching Josephson logic and in quasiparticle mm-wave mixers.

Original languageEnglish (US)
Pages (from-to)879-881
Number of pages3
JournalApplied Physics Letters
Issue number11
StatePublished - Dec 1 1979
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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    Howard, R. E., Hu, E. L., Jackel, L. D., Fetter, L. A., & Bosworth, R. H. (1979). Small-area high-current-density Josephson junctions. Applied Physics Letters, 35(11), 879-881.