Studies of static and dynamic properties of multilayered (stacked) Josephson junctions

Shenian N. Song, Stevan R. Maglic, Christopher D. Thomas, Edward D. Rippert, P. R. Auvil, Melville P Ulmer, John B Ketterson

Research output: Contribution to journalConference articlepeer-review


We have studied the static I-V characteristics and vortex dynamics in stacked Nb/AlOx/Nb Josephson junctions. In josephson junction stacks consisting of two junctions having identical maximum Josephson supercurrent Ic,Ic versus H characteristics deviating from the Fraunhofer pattern have been observed, implying that a structural phase transformation to a triangular vortex lattice occurs with increasing H. Interjunction coupling leads to splitting of the Swihart mode; which manifest itself as Fisk steps with different voltage spacings. When subjected to microwave radiation, the I-V curves of the stacked Josephson junctions exhibit new features which are absent in single junctions.

Original languageEnglish (US)
Pages (from-to)487-493
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 1996
EventOxide Superconductor Physics and Nano-Engineering II - San Jose, CA, United States
Duration: Jan 30 1996Jan 30 1996


  • Josephson junctions
  • Stacked junctions
  • Vortex structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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