Normal state thermodynamics of cuprate superconductors

TL;DR

This paper offers a microscopic bipolaron theory-based explanation for the pseudogap phenomena observed in the normal state thermodynamics of cuprate superconductors, including specific heat and magnetic susceptibility.

Contribution

It introduces a bipolaron model to explain the universal scaling and magnitude of thermodynamic properties in cuprates' normal state.

Findings

Explains pseudogap features in specific heat and susceptibility

Shows universal temperature scaling across doping levels

Provides quantitative agreement with experimental data

Abstract

We propose a microscopic explanation of the pseudogap features discovered in the normal state specific heat and magnetic susceptibility of cuprates. In the framework of the bipolaron theory of high-Tc superconductors we explain the magnitude of the carrier specific heat and susceptibility as well as their universal scaling with temperature over a wide range of doping.