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arXiv · 1308.1189

A toy model for the pseudogap state of cuprates

Navinder Singh Bathinda
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Abstract

A toy model is developed to capture "dance of pre-formed pairs" in the pseudogap state of high temperature cuprate superconductors. The model is a crude description of a hypothetical situation in which spin-driven spatial organization of the pre-formed pairs is analyzed. Within a mean-field theory (a slight generalization of Bragg-Williams theory) we examined the behaviour of heat capacity and an "order parameter" which captures the short range correlations between the pre-formed pairs. Below a transition temperature these short range correlations enhance and leads to a long range order (spin-density wave). This is examined through the breakdown of statistical independence.

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Navinder Singh Bathinda. 2013-08-06. A toy model for the pseudogap state of cuprates. https://arxiv.org/abs/1308.1189

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