9 December 1998 Coupling of intrinsic Josephson oscillations in layered superconductors by charge fluctuations
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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.
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Christian Preis, Christian Preis, Christian Helm, Christian Helm, Joachim Keller, Joachim Keller, A. Sergeev, A. Sergeev, Reinhold Kleiner, Reinhold Kleiner, } "Coupling of intrinsic Josephson oscillations in layered superconductors by charge fluctuations", Proc. SPIE 3480, Superconducting Superlattices II: Native and Artificial, (9 December 1998); doi: 10.1117/12.332438; https://doi.org/10.1117/12.332438


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