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Josephson effect in point contacts between ''f-wave'' superconductors

R. Mahmoodi·S. N. Shevchenko·Yu. A. Kolesnichenko
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Abstract

A stationary Josephson effect in point contacts between triplet superconductors is analyzed theoretically for most probable models of the order parameter in UPt_{3} and Sr_{2}RuO_{4}. The consequence of misorientation of crystals in superconducting banks on this effect is considered. We show that different models for the order parameter lead to quite different current-phase dependences. For certain angles of misorientation a boundary between superconductors can generate the parallel to surface spontaneous current. In a number of cases the state with a zero Josephson current and minimum of the free energy corresponds to a spontaneous phase difference. This phase difference depends on the misorientation angle and may possess any value. We conclude that experimental investigations of the current-phase dependences of small junctions can be used for determination of the order parameter symmetry in the mentioned above superconductors.

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R. Mahmoodi, S. N. Shevchenko, Yu. A. Kolesnichenko. 2002-04-26. Josephson effect in point contacts between ''f-wave'' superconductors. https://doi.org/10.1063/1.1468521

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