Multiband superconductivity and penetration depth in PrOs4Sb12

Details Multiband superconductivity and penetration depth in PrOs4Sb12 Multiband superconductivity and penetration depth in PrOs4Sb12

2007-06-04

arxiv.org/abs/0706.0439v1

Physics

Condensed Matter

Superconductivity

2 pages, 2 figures, submitted for publication in Proc. Int. Conf. on Strongly Correlated Electron Systems, Houston, May 2007

Scientific paper

10.1016/j.physb.2007.10.329

The effective superconducting penetration depth measured in the vortex state of PrOs4Sb12 using transverse-field muon spin rotation (TF-muSR) exhibits an activated temperature dependence at low temperatures, consistent with a nonzero gap for quasiparticle excitations. In contrast, Meissner-state radiofrequency (rf) inductive measurements of the penetration depth yield a T^2 temperature dependence, suggestive of point nodes in the gap. A scenario based on the recent discovery of extreme two-band superconductivity in PrOs4Sb12 is proposed to resolve this difference. In this picture a large difference between large- and small-gap coherence lengths renders the field distribution in the vortex state controlled mainly by supercurrents from a fully-gapped large-gap band. In zero field all bands contribute, yielding a stronger temperature dependence to the rf inductive measurements.

Affiliated with

Also associated with

No associations

Rating

Multiband superconductivity and penetration depth in PrOs4Sb12 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 Multiband superconductivity and penetration depth in PrOs4Sb12, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiband superconductivity and penetration depth in PrOs4Sb12 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-726794