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

Z. Y. Weng·D. N. Sheng·C. S. Ting
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Abstract

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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Z. Y. Weng, D. N. Sheng, C. S. Ting. 2000-04-13. Understanding high-Tc cuprates based on the phase string theory of doped antiferromagnet. https://doi.org/10.1016/s0921-4534(00)00391-9

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