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Trapped fluxons in annular Josephson junctions in the external magnetic field

Vernik, I. V.; Keil, S.; Ustinov, Alexey V.; Thyssen, N.; Doderer, T.; Kohlstedt, H.; Huebener, R. P.

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.

The financial support from the DAAD is greatly acknowledged.

Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 1996
Sprache Englisch
Identifikator ISSN: 0011-4626, 1572-9486, 0009-0700, 0011-4226
KITopen ID: 1000075683
Erschienen in Czechoslovak journal of physics
Band 46
Heft Suppl. 2
Seiten 649–650
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