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

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.

11 pages, 8 figures

References in corpus (2)

• Mechanisms of Spontaneous Current Generation in an Inhomogeneous d-Wave Superconductor
• Josephson current between chiral superconductors

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• Transport of Charge and Spin in the Weak Link between Misoriented $PrO{s}_{4}S{b}_{12}$ Superconductors
• Transport Properties in Ferromagnetic Josephson Junction between Triplet Superconductors
• Stationary Josephson effect in a weak-link between nonunitary triplet superconductors