Numerical extension of the power law Jc(B) to zero field in thin superconducting films

Details Numerical extension of the power law Jc(B) to zero field in thin superconducting films Numerical extension of the power law Jc(B) to zero field in thin superconducting films

2009-12-10

arxiv.org/abs/0912.1979v1

Physica C 470 (2010) S1041-S1042

Physics

Condensed Matter

Superconductivity

5 pages, 2 figures

Scientific paper

10.1016/j.physc.2010.01.048

Numerical simulations of the current and field distribution in thin superconducting films are carried out for a given material law Jc(B) and as a function of the applied field H, taking the sample's self-field into account. The dependence of the critical current density on the applied field Jc(H) is computed for comparison with experiment, considering the geometry of transport measurements. We show that extrapolating the high field power law Jc \propto B^{-\alpha} to the lowest fields results in a finite critical current at zero applied field Jc(H=0), despite the singularity of Jc(B). Moreover, particular features of the experiment, such as a low field plateau in Jc(H), are reproduced and found to be determined by the self-field.

Affiliated with

Also associated with

No associations

Rating

Numerical extension of the power law Jc(B) to zero field in thin superconducting films 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 Numerical extension of the power law Jc(B) to zero field in thin superconducting films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical extension of the power law Jc(B) to zero field in thin superconducting films will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-594760