Incommensurate nematic fluctuations in two dimensional metals

Details Incommensurate nematic fluctuations in two dimensional metals Incommensurate nematic fluctuations in two dimensional metals

2012-02-02

arxiv.org/abs/1202.0497v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

To assess the strength of nematic fluctuations with a finite wave vector in a two-dimensional metal, we compute the static d-wave polarization function for tight-binding electrons on a square lattice. At Van Hove filling and zero temperature the function diverges logarithmically at q=0. Away from Van Hove filling the ground state polarization function exhibits finite peaks at finite wave vectors. A nematic instability driven by a sufficiently strong attraction in the d-wave charge channel thus leads naturally to a spatially modulated nematic state, with a modulation vector that increases in length with the distance from Van Hove filling. Above Van Hove filling, for a Fermi surface crossing the magnetic Brillouin zone boundary, the modulation vector connects antiferromagnetic hot spots.

Affiliated with

Also associated with

No associations

Rating

Incommensurate nematic fluctuations in two dimensional metals 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 Incommensurate nematic fluctuations in two dimensional metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incommensurate nematic fluctuations in two dimensional metals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-188389