Comparison of the Transport Mechanism in Underdoped High Temperature Superconductors and in Spin Ladders

TL;DR

This paper compares the transport mechanisms in underdoped high-temperature superconductors and spin ladder compounds, providing insights into their normal state resistivity through high magnetic field measurements and theoretical models.

Contribution

It introduces a comparative analysis of transport data in high-Tc superconductors and spin ladders, interpreting results via 1D quantum transport and charge-stripe models.

Findings

Normal state resistivity measured under high magnetic fields.

Comparison supports 1D quantum transport model.

Charge-stripe models also explain the data.

Abstract

Recently, the normal state resistivity of high temperature superconductors (in particular in La2-xSrxCuO4 single crystals) has been studied extensively in the region below Tc by suppressing the superconducting state in high magnetic fields. In the present work we report on the normal state resistance of underdoped La2-xSrxCuO4 thin films under epitaxial strain, measured far below Tc by applying pulsed fields up to 60 T. We will compare the transport measurements on these high temperature superconductors with transport data reported for the Sr2.5Ca11.5Cu24O41 spin ladder compound. This comparison leads to an interpretation of the data in terms of the recently proposed 1D quantum transport model and the charge-stripe models.