Does the Two-Dimensional t-J Model have Hole Pockets?

Details Does the Two-Dimensional t-J Model have Hole Pockets? Does the Two-Dimensional t-J Model have Hole Pockets?

1998-03-11

arxiv.org/abs/cond-mat/9803141v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 2 figures. Contribution to Spectroscopies of Novel Superconductors 97, Cape Cod, MA

Scientific paper

10.1016/S0022-3697(98)00119-X

We have calculated the high temperature series for the momentum distribution
function n_k of the 2D t-J model to 12th order in inverse temperature. By
extrapolating the series to T=0.2J we investigate the possibility of hole
pockets in the t-J model. We find no indication of hole pockets at an electron
density of n=0.9 with J/t=0.5 or J/t=1.0.

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