Renormalization group approach to anisotropic superconductivity

Details Renormalization group approach to anisotropic superconductivity Renormalization group approach to anisotropic superconductivity

2007-02-28

arxiv.org/abs/cond-mat/0702673v2

Phys. Rev. B 79, 224514 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 7 figures. Final version as published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.79.224514

The superconducting instability of the Fermi liquid state is investigated by considering anisotropic electron-boson couplings. Both electron-electron interactions and anisotropic electron-boson couplings are treated with a renormalization-group method that takes into account retardation effects. Considering a non-interacting circular Fermi surface, we find analytical solutions for the flow equations and derive a set of generalized Eliashberg equations. Electron-boson couplings with different momentum dependences are studied, and we find superconducting instabilities of the metallic state with competition between order parameters of different symmetries. Numerical solutions for some couplings are given to illustrate the frequency dependence of the vertices at different coupling regimes.

Affiliated with

Also associated with

No associations

Rating

Renormalization group approach to anisotropic superconductivity 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 Renormalization group approach to anisotropic superconductivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Renormalization group approach to anisotropic superconductivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-524460