Evidence for collectively phase-locked Shapiro steps in stacked Nb/Al-AlOx/Nb Josephson junctions

S. N. Song*, C. Thomas, E. D. Rippert, S. Maglic, Y. C. Song, S. W. Lin, C. T. Lin, M. Ulmer, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

When subjected to microwave radiation, the I-V characteristics of stacked Josephson junctions should exhibit interesting new features which are absent in a single junction. Evidence for collectively phase-locked Shapiro steps and coherent phase-locking of fluxon motion to the external microwave field has been found in observations on stacked Nb/Al-AlOx/Nb Josephson junctions.

Original languageEnglish (US)
Pages (from-to)172-176
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume211
Issue number3
DOIs
StatePublished - Feb 12 1996

Keywords

  • Josephson junction
  • Shapiro step

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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