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.
Keywords
Cite
@article{arxiv.cond-mat/0204571,
title = {Josephson effect in point contacts between ''f-wave'' superconductors},
author = {R. Mahmoodi and S. N. Shevchenko and Yu. A. Kolesnichenko},
journal= {arXiv preprint arXiv:cond-mat/0204571},
year = {2011}
}
Comments
11 pages, 8 figures