Josephson junctions in narrow thin-film strips

Details Josephson junctions in narrow thin-film strips Josephson junctions in narrow thin-film strips

2008-02-20

arxiv.org/abs/0802.2783v1

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.78.020510

We study the field dependence of the maximum supercurrent in narrow edge-type thin-film Josephson junctions. It is assumed that the junction extends across thin-film strip of width W that is much less than the Pearl length; the film thickness is much less than the London penetration depth. We calculate the maximum supercurrent within nonlocal Josephson electrodynamics, which takes into account the stray fields affecting tunneling currents. In the case when W is much less than the thin-film Josephson length, the phase difference along the junction depends only on the junction geometry and the applied field, but is independent of the Josephson critical current density, i.e., it is universal. Zeros of the maximum supercurrent are equidistant only in large fields (unlike the case of junctions with bulk banks); they are spaced by a field that is much smaller than the one of bulk junctions. Peaks of the maximum supercurrent decrease inversely proportional to the square root of the applied field, i.e., slower than 1/H for the bulk.

Affiliated with

Also associated with

No associations

Rating

Josephson junctions in narrow thin-film strips does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Josephson junctions in narrow thin-film strips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Josephson junctions in narrow thin-film strips will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-647488