English

Extremely correlated fermi liquid of $t$-$J$ model in two dimensions

Strongly Correlated Electrons 2018-11-14 v3

Abstract

We study the two-dimensional tt-JJ model with second neighbor hopping parameter tt' and in a broad range of doping δ\delta using a closed set of equations from the {\em Extremely Correlated Fermi Liquid} (ECFL) theory. We obtain asymmetric energy distribution curves and symmetric momentum distribution curves of the spectral function, consistent with experimental data. We further explore the Fermi surface and local density of states for different parameter sets. Using the spectral function, we calculate the resistivity, Hall number and spin susceptibility. The curvature change in the resistivity curves with varying δ\delta is presented and connected to intensity loss in Angle Resolved Photoemission Spectroscopy (ARPES) experiments. We also discuss the role of the super-exchange JJ in the spectral function and the resistivity in the optimal to overdoped density regimes.

Keywords

Cite

@article{arxiv.1808.09788,
  title  = {Extremely correlated fermi liquid of $t$-$J$ model in two dimensions},
  author = {Peizhi Mai and B. Sriram Shastry},
  journal= {arXiv preprint arXiv:1808.09788},
  year   = {2018}
}