Thermodynamic and transport properties of underdoped cuprates from ARPES data

TL;DR

This paper explores how ARPES spectra relate to thermodynamic and transport properties in underdoped cuprates, revealing correlations between spectral features and physical behaviors like resistivity and superfluid density.

Contribution

It establishes quantitative links between ARPES-derived spectral data and thermodynamic and transport measurements in underdoped cuprates, providing a new way to analyze their properties.

Findings

Quasi-particle density at Fermi level correlates with specific heat coefficient.

Spectral weight at Fermi level relates to superfluid density.

Resistivity estimated from ARPES data matches experimental temperature dependence.

Abstract

he relationship between photoemission spectra of high-$T_{\textrm{c}}$ cuprates and their thermodynamic and transport properties are discussed. The doping dependence of the expected quasi-particle density at the Fermi level ($E_\mathrm{F}$) are compared with the electronic specific heat coefficient $\gamma$ and that of the spectral weight at $E_\mathrm{F}$ with the in-plane and out-of-plane superfluid density. We have estimated the electrical resistivity of underdoped cuprates from the momentum distribution curve (MDC) at $E_\mathrm{F}$ in the nodal direction. The temperature dependence of the MDC width is also consistent with that of the electrical resistivity.