An alternative normal state c-axis resistivity model for high-Tc superconductors

TL;DR

This paper proposes a new model for the c-axis resistivity in layered high-Tc superconductors, incorporating ionization energy, and demonstrates good agreement with experimental data for specific crystal types.

Contribution

It introduces an alternative two-dimensional Fermi liquid model including ionization energy to better explain c-axis resistivity in high-Tc superconductors.

Findings

Model agrees quantitatively with Bi2212 and Y123 single crystals.

Model aligns qualitatively with pure 1212 phase polycrystals.

Inclusion of ionization energy improves resistivity predictions.

Abstract

An alternative model for c-axis resistivity in layered high-Tc crystalline superconductors is proposed and has been characterized as an essentially two-dimensional Fermi liquid. Average ionization energy is included as additional parameter that determines the concentration of tunnelling electrons between Cu-O2 layers. This model agrees well quantitatively with the Bi2212 and Y123 single crystals, and qualitatively with the pure 1212 phase polycrystals.