"Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ?

Details "Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ? "Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ?

2002-02-06

arxiv.org/abs/cond-mat/0202096v1

Phys. Rev. B 66, 052504 (2002)

Physics

Condensed Matter

Superconductivity

4 pages, no figure

Scientific paper

10.1103/PhysRevB.66.052504

The renormalization factor, dubbed ``quasiparticle charge'' Z_e, of the coupling between the supercurrent and quasiparticles was analyzed in the context of high temperature cuprates in a recent paper by Ioffe and Millis. They observed that Z_e in cuprates deviates from the BCS value (Z_e=1), which was interpreted as the proximity effect near a Mott insulator. Here we show that the deviation from Z_e=1 can occur, in general, even in the absence of quasiparticle interactions, when the superconducting order coexists with another order parameter with the same internal symmetry. As an example, we compute the coefficient of the linear temperature dependence of the superfluid density when the d-wave superconducting state coexists with the orbital antiferromagnetic state (d-density wave), and find that Z_e varies from 1/\sqrt{2} to 1.

Affiliated with

Also associated with

No associations

Rating

"Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ? 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 "Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and "Quasiparticle Charge" in Superconductors: Effect of Mott Physics or Hidden Order Parameter ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-631698