Maximum supercurrent in two Josephson-junction stacks: Theory and experiment

G. Carapella, G. Costabile, S. Sakai, and N. F. Pedersen
Phys. Rev. B 58, 6497 – Published 1 September 1998
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Abstract

The interaction between two long Josephson junctions in a stack is investigated experimentally in the absence of applied magnetic field. Mutual interaction is observed when both junctions or only one junction in the stack is in the zero voltage state. To account for the observed phenomena we propose a model that takes into account the nonuniform self-fields generated by the bias currents.

  • Received 19 March 1998

DOI:https://doi.org/10.1103/PhysRevB.58.6497

©1998 American Physical Society

Authors & Affiliations

G. Carapella and G. Costabile

  • Unità INFM and Dipartimento di Fisica, Università di Salerno, I-84081 Baronissi, Italy

S. Sakai

  • Electrotechnical Laboratory, 1-1-4 Umezono, Tsukuba-shi, Ibaraki 305, Japan

N. F. Pedersen

  • Department of Physics, B309, The Technical University of Denmark, DK-2800 Lyngby, Denmark

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Vol. 58, Iss. 10 — 1 September 1998

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