Current-phase relation of the SNS junction in a superconducting loop
arXiv:cond-mat/0406445 · doi:10.1209/epl/i2005-10347-0
Abstract
We study the current-phase relation of the superconductor/normal/superconductor (SNS) junction imbedded in a superconducting loop. Considering the current conservation and free energy minimum conditions, we obtain the persistent currents of the normal/superconductor (NS) loop. At finite temperature we can explain the experimentally observed highly non-sinusoidal currents which have maxima near the zero external flux.
7 pages, 3 figures, version to appear in Europhys. Lett