Normal State Resistivity of Underdoped YBa2Cu3Ox Thin Films and La2-xSrxCuO4 Ultra-Thin Films under Epitaxial Strain

TL;DR

This study investigates the normal state resistivity of underdoped YBa2Cu3Ox and strained La2-xSrxCuO4 thin films under high magnetic fields, revealing universal behavior and supporting a 1D quantum transport model involving charge stripes.

Contribution

It provides new measurements of normal state resistivity under high fields and under strain, supporting the 1D charge stripe transport model in high temperature superconductors.

Findings

Universal rho(T) behavior observed in both materials.

Normal state resistivity suppressed below Tc using pulsed magnetic fields.

Data supports the 1D quantum transport model involving charge stripes.

Abstract

The normal state resistivity of high temperature superconductors can be probed in the region below Tc by suppressing the superconducting state in high magnetic fields. Here we present the normal state properties of YBa2Cu3Ox thin films in the underdoped regime and the normal state resistance of La2-xSrxCuO4 thin films under epitaxial strain, measured below Tc by applying pulsed fields up to 60 T. A universal rho(T) behaviour is reported. We interpret these data in terms of the recently proposed 1D quantum transport model with the 1D paths corresponding to the charge stripes.