Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides

Details Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides

2009-01-14

arxiv.org/abs/0901.2102v2

Phys. Rev. B 79, 220501(R) (2009)

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures, discussion on the vertex corrections is extended

Scientific paper

10.1103/PhysRevB.79.220501

We argue that Raman study of Fe-pnictides is a way to unambiguously distinguish between various superconducting gaps proposed for these materials. We show that $A_{1g}$ Raman intensity has a true resonance peak below $2\Delta$ for extended s-wave superconducting gap, $\Delta(\mathbf{k}) = \Delta (\cos k_x + \cos k_y)/2$ in the folded Brillouin zone. No such peak emerges for a pure s-wave gap, a d-wave gap, and another extended s-wave gap with $\Delta(\mathbf{k}) = \Delta \cos{\frac{k_x}{2}} \cos{\frac{k_y}{2}}$ proposed by several groups.

Affiliated with

Also associated with

No associations

Rating

Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides 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 Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of Raman response in a superconductor with extended s-wave symmetry: Application to Fe-pnictides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-589036