Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model

Details Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model

1997-06-08

arxiv.org/abs/cond-mat/9706073v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We analytically calculate the ground state pairing symmetry and excitation spectra of two holes doped into the half-filled t-t'-t''-J_z model in the strong-coupling limit (J_z >> |t|, |t'|, |t''|). For the t'-t''-J_z model, there are regions of d-wave, s-wave, and p-wave symmetry. We find that the t-J_z model maps in lowest order onto the t'-t''-J_z model on the boundary between d and p symmetry, with a flat lower branch of the pair excitation spectrum. In higher order d-wave symmetry is selected; however, we predict that the addition of the appropriate t' and/or t'' should drive the hole-pair symmetry to p-wave. We perturbatively construct an extended quasi-pair for the t-J_z model. We compare with analytic calculations for a 2x2 plaquette and numerical work, and discuss implications for the experimentally relevant parameter regime.

Affiliated with

Also associated with

No associations

Rating

Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model 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 Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hole-pair symmetry and excitations in the strong-coupling extended t-J_z model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-217752