Scaling of Coulomb pseudo-potential in s-wave narrow-band superconductors

Details Scaling of Coulomb pseudo-potential in s-wave narrow-band superconductors Scaling of Coulomb pseudo-potential in s-wave narrow-band superconductors

2001-11-04

arxiv.org/abs/cond-mat/0111051v2

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures, accepted for publication by Phys. Rev. B

Scientific paper

10.1103/PhysRevB.65.052504

The Coulomb pseudo-potential $\mu^*$ is extracted by fitting the numerically calculated transition temperature $T_c$ of the Eliashberg-Nambu equation which is extended to incorporate the narrow-band effects, that is, the vertex correction and the frequency dependence of the screened Coulomb interaction. It is shown that even for narrow-band superconductors, where the fermi energy $ \epsilon_F$ is comparable with the phonon frequency $ \omega_{ph}$, the Coulomb pseudo-potential is a pertinent parameter, and is still given by $\mu^* = \mu/[1+\mu \ln(\epsilon_F/\omega_{ph})] $, provided $\omega_{ph}$ is appropriately scaled.

Affiliated with

Also associated with

No associations

Rating

Scaling of Coulomb pseudo-potential in s-wave narrow-band 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 Scaling of Coulomb pseudo-potential in s-wave narrow-band superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling of Coulomb pseudo-potential in s-wave narrow-band superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332259