Effective action for vortex dynamics in clean d-wave superconductors

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

17 pages (+9 in appendices), 7 figures

Scientific paper

10.1103/PhysRevB.73.134511

We describe the influence of the gapless, nodal, fermionic quasiparticles of a two-dimensional d-wave superconductor on the motion of vortices. A continuum, functional formalism is used to obtain the effective vortex action, after the fermions have been integrated out. At zero temperture (T), the leading terms in the vortex action retain their original form, with only a finite renormalization of the vortex effective mass from the fermions. A universal "sub-ohmic" damping of the vortex motion is also found. At T>0, we find a Bardeen-Stephen viscous drag term, with a universal co-efficient which vanishes as ~T^2. We present a simple scaling interpretation of our results, in which quantum-critical Dirac fermions respond to a moving point singularity. Our results appear to differ from those of the semiclassical theory, which obtains more singular corrections to a vortex mass appearing in transport equations.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Effective action for vortex dynamics in clean d-wave 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 Effective action for vortex dynamics in clean d-wave superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective action for vortex dynamics in clean d-wave superconductors will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-7925

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.