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Current-phase relation of double-barrier Josephson junctions with a two-gap superconductor as intermediate electrode


The current-phase (I-ϕ) relation of a double-barrier Josephson junction with a two-gap superconductor as intermediate electrode is derived by means of a simplified version of Ohta’s model. As in conventional double-barrier Josephson junctions, a marked skewness in the I-ϕ curves is present. Moreover, as in heterotic Josephson devices, a reduction of the maximum Josephson current is predicted. An appropriate experiment to verify the rich behavior of this type of Josephson device is suggested.

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Correspondence to Roberto De Luca.

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De Luca, R. Current-phase relation of double-barrier Josephson junctions with a two-gap superconductor as intermediate electrode. Eur. Phys. J. B 86, 294 (2013).

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  • Mesoscopic and Nanoscale Systems