Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor

Details Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor

2006-11-10

arxiv.org/abs/cond-mat/0611291v1

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures; accepted by Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.97.236401

We report the discovery of a self-doped multi-layer high Tc superconductor Ba2Ca3Cu4O8F2(F0234) which contains distinctly different superconducting gap magnitudes along its two Fermi surface(FS) sheets. While formal valence counting would imply this material to be an undoped insulator, it is a self-doped superconductor with a Tc of 60K, possessing simultaneously both electron- and hole-doped FS sheets. Intriguingly, the FS sheet characterized by the much larger gap is the electron-doped one, which has a shape disfavoring two electronic features considered to be important for the pairing mechanism: the van Hove singularity and the antiferromagnetic (Pi/a, Pi/a) scattering.

Affiliated with

Also associated with

No associations

Rating

Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor 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 Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-Tc Superconductor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-566075