RG analysis and Magnetic instability in gapless superconductors

Details RG analysis and Magnetic instability in gapless superconductors RG analysis and Magnetic instability in gapless superconductors

2005-06-09

arxiv.org/abs/hep-ph/0506097v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure; v2. minor changes, typos corrected

Scientific paper

We study the magnetic instability of gapless superconductors. The instability arises due to the infrared divergence associated with the gapless modes of the superconductor. When the Fermi-surface mismatch between pairing fermions is close to the gap, the gapless modes have a quadratic energy dispersion relation at low energy and open a secondary gap at the Fermi surface, which is only power-suppressed by the coupling. On the other hand, for a large mismatch, we find the gapless superconductor does not open a secondary gap, but instead makes transition to a new phase by forming the condensate of supercurrents. We calculate the condensate of supercurrents by minimizing the effective potential. In the new phase, the Meissner mass is positive for the magnetic fields orthogonal to the direction of the condensate but zero in the parallel direction.

Affiliated with

Also associated with

No associations

Rating

RG analysis and Magnetic instability in gapless superconductors 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 RG analysis and Magnetic instability in gapless superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RG analysis and Magnetic instability in gapless superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-170437