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

Research paper by Roberto De Luca

Indexed on: 26 Jun '13Published on: 26 Jun '13Published in: The European Physical Journal B



Abstract

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.