Superconducting films with antidot arrays - novel behavior of the critical current

Details Superconducting films with antidot arrays - novel behavior of the critical current Superconducting films with antidot arrays - novel behavior of the critical current

2006-03-06

arxiv.org/abs/cond-mat/0603122v1

Europhysics Letters (2006)

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

10.1209/epl/i2006-10013-1

Novel behavior of the critical current density $j_{c}$ of a regularly perforated superconducting film is found, as a function of applied magnetic field $H$. Previously pronounced peaks of $j_{c}$ at matching fields were always found to decrease with increasing $H$. Here we found a {\it reversal of this behavior} for particular geometrical parameters of the antidot lattice and/or temperature. This new phenomenon is due to a strong ``caging'' of interstitial vortices between the pinned ones. We show that this vortex-vortex interaction can be further tailored by an appropriate choice of the superconducting material, described by the Ginzburg-Landau parameter $\kappa$. In effective type-I samples we predict that the peaks in $j_{c}(H)$ at the matching fields are transformed into a {\it step-like behavior}.

Affiliated with

Also associated with

No associations

Rating

Superconducting films with antidot arrays - novel behavior of the critical current 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 Superconducting films with antidot arrays - novel behavior of the critical current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting films with antidot arrays - novel behavior of the critical current will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-44265