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Proceedings Paper

Coupling of intrinsic Josephson oscillations in layered superconductors by charge fluctuations
Author(s): Christian Preis; Christian Helm; Joachim Keller; A. Sergeev; Reinhold Kleiner
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Paper Abstract

The coupling of Josephson oscillations in layered superconductors is studied with help of a tunneling Hamiltonian formalism. The general form of the current density across the barriers between the superconducting layers is derived. The induced charge fluctuations on the superconducting layers lead to a coupling of the Josephson oscillations in different junctions. A simplified set of equations is then used to study the non-linear dynamics of the system. In particular the influence of the coupling on the current-voltage characteristics is investigated and upper limits for the coupling strength are estimated from a comparison with experiments on cuprate superconductors.

Paper Details

Date Published: 9 December 1998
PDF: 9 pages
Proc. SPIE 3480, Superconducting Superlattices II: Native and Artificial, (9 December 1998); doi: 10.1117/12.332438
Show Author Affiliations
Christian Preis, Univ. of Regensburg (Germany)
Christian Helm, Univ. of Regensburg (Germany)
Joachim Keller, Univ. of Regensburg (Germany)
A. Sergeev, Univ. of Regensburg (Germany)
Reinhold Kleiner, Univ. of Erlangen-Nurnberg (Germany)

Published in SPIE Proceedings Vol. 3480:
Superconducting Superlattices II: Native and Artificial
Ivan Bozovic; Davor Pavuna, Editor(s)

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