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Czechoslovak Journal of Physics

, Volume 46, Supplement 2, pp 649–650 | Cite as

Trapped fluxons in annular Josephson junctions in the external magnetic field

  • I. V. Vernik
  • S. Keil
  • A. V. Ustinov
  • N. Thyssen
  • T. Doderer
  • H. Kohlstedt
  • R. P. Huebener
LTSC—Tunnelling Phenomena, Layered Structures, Weak Links, Proximity Effects
  • 16 Downloads

Abstract

The behavior of a long annular Josephson junction is studied in presence of an externally applied magnetic field. We report on measurements of the critical current dependencies on magnetic field with various numbers of trapped fluxons. The magnetic field produces opposite-located potential wells for fluxon and antifluxon. The images obtained by low temperature scanning electron microscopy prove that fluxon and antifluxon are pinned by these field-induced wells. Good agreement is found between experiment and numerical simulations.

Keywords

Magnetic Field Critical Current Density Fourth Step Parallel Magnetic Field Flux Polarity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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Copyright information

© Institute of Physics, Acad. Sci. CR 1996

Authors and Affiliations

  • I. V. Vernik
    • 1
  • S. Keil
    • 1
  • A. V. Ustinov
    • 2
  • N. Thyssen
    • 2
  • T. Doderer
    • 1
  • H. Kohlstedt
    • 2
  • R. P. Huebener
    • 1
  1. 1.Experimentalphysik IIUniversität TübingenTübingenGermany
  2. 2.Institut für Schicht- und IonentechnikForschungszentrum Jülich (KFA)JülichGermany

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