Emergence of Fermi pockets in an excitonic CDW melted novel superconductor

Details Emergence of Fermi pockets in an excitonic CDW melted novel superconductor Emergence of Fermi pockets in an excitonic CDW melted novel superconductor

2006-11-27

arxiv.org/abs/cond-mat/0611657v1

Phys. Rev. Lett. 98, 117007 (2007)

Physics

Condensed Matter

Superconductivity

4+ pages, 5 figures; Accepted for publication in Phys. Rev. Lett. (2007)

Scientific paper

10.1103/PhysRevLett.98.117007

A superconducting (SC) state (Tc ~ 4.2K) has very recently been observed upon successful doping of the CDW ordered triangular lattice TiSe$_2$, with copper. Using high resolution photoemission spectroscopy we identify, for the first time, the momentum space locations of the doped electrons that form the Fermi sea of the parent superconductor. With doping, we find that the kinematic nesting volume increases whereas the coherence of the CDW order sharply drops. In the superconducting doping, we observe the emergence of a large density of states in the form of a narrow electron pocket near the \textit{L}-point of the Brillouin Zone with \textit{d}-like character. The \textit{k}-space electron distributions highlight the unconventional interplay of CDW to SC cross-over achieved through non-magnetic copper doping.

Affiliated with

Also associated with

No associations

Rating

Emergence of Fermi pockets in an excitonic CDW melted novel 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 Emergence of Fermi pockets in an excitonic CDW melted novel superconductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergence of Fermi pockets in an excitonic CDW melted novel superconductor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-23017