Understanding high-Tc cuprates based on the phase string theory of doped antiferromagnet

Details Understanding high-Tc cuprates based on the phase string theory of doped antiferromagnet Understanding high-Tc cuprates based on the phase string theory of doped antiferromagnet

2000-03-02

arxiv.org/abs/cond-mat/0003034v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 embeded eps figures, minor typos are corrected, to appear in the proceedings of M2S-HTSC-VI conference

Scientific paper

We present a self-consistent RVB theory which unifies the metallic (superconducting) phase with the half-filling antiferromagnetic (AF) phase. Two crucial factors in this theory include the RVB condensation which controls short-range AF spin correlations and the phase string effect introduced by hole hopping as a key doping effect. We discuss both the uniform and non-uniform mean-field solutions and show the unique features of the characteristic spin energy scale, superconducting transition temperature, and the phase diagram, which are all consistent with the experimental measurements of high-$T_c$ cuprates.

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