Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states

Details Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states

2009-01-28

arxiv.org/abs/0901.4570v1

Phys. Rev. B 78, 224522 (2008)

Physics

Condensed Matter

Superconductivity

12 pages, 17 figures

Scientific paper

10.1103/PhysRevB.78.224522

We study the Andreev edge states with different pairing symmetries and boundary topologies on semi-infinite triangular lattice of Na_xCoO_2.yH_2O. A general mapping from the two dimensional lattice to the one dimensional tight-binding model is developed. It is shown that the phase diagram of the Andreev edge states depends on the pairing symmetry and also the boundary topology. Surprisingly, the structure of the phase diagram crucially relies on the nodal points on the Fermi surface and can be explained by an elegant gauge argument. We compute the momentum-resolved local density of states near the edge and predict the hot spots which are measurable in Fourier-transformed scanning tunneling spectroscopy.

Affiliated with

Also associated with

No associations

Rating

Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states 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 Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Identifying the pairing symmetry in sodium cobalt oxide by Andreev edge states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-12961