Switching delay of a nonlatching Josephson gate evaluated from ring oscillator operation

Yoshinao Mizugaki, Koji Nakajima, Akira Shoji

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)

Abstract

The authors present the experimental results for the switching delay of a dc-biased nonlatching Josephson gate (a coupled-superconducting quantum interference device gate). The measurement is executed by the use of a ring oscillator (RO) method. A frequency-to-voltage converter is used to evaluate the oscillation frequency of the RO. The circuit is designed and fabricated using a 2.5-kA/cm2 Nb/AlOx/Nb Josephson junction technology. The results show the minimum switching delay of 18 ps.

Original languageEnglish
Pages (from-to)188-191
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume8
Issue number4
DOIs
Publication statusPublished - 1998
Externally publishedYes

Keywords

  • Circuit testing
  • Josephson logic
  • Non-latching Josephson gate
  • Ring oscillator
  • Superconducting circuits
  • Switching delay
  • dc-biasing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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