Hall effect and resistivity in underdoped cuprates

TL;DR

This paper presents a model based on preformed pairs-bipolarons that quantitatively explains the temperature-dependent Hall ratio, resistivity, and magnetic susceptibility in underdoped cuprates across various doping levels.

Contribution

It introduces a self-consistent model of preformed pairs-bipolarons to describe normal state properties of underdoped cuprates, unifying multiple experimental observations.

Findings

The model reproduces the maximum in $R_{H}(T)$ and its doping dependence.

It provides a consistent description of resistivity and magnetic susceptibility.

The results support the preformed pairs-bipolarons as key to understanding cuprate normal state properties.

Abstract

The behaviour of the Hall ratio $R_{H}(T)$ as a function of temperature is one of the most intriguing normal state properties of cuprate superconductors. One feature of all the data is a maximum of $R_{H}(T)$ in the normal state that broadens and shifts to temperatures well above $T_c$ with decreasing doping. We show that a model of preformed pairs-bipolarons provides a selfconsistent quantitative description of $R_{H}(T)$ together with in-plane resistivity and uniform magnetic susceptibility for a wide range of doping.