Gap Symmetry and Thermal Conductivity in Nodal Superconductors

TL;DR

This paper investigates how thermal conductivity varies with impurities and angle in nodal superconductors, offering insights into their gap symmetry, especially in Sr2RuO4 and UPd2Al3.

Contribution

It provides a detailed analysis of universal heat conduction and angular thermal conductivity in the vortex state of nodal superconductors, enhancing understanding of their gap symmetry.

Findings

Thermal conductivity depends on impurity concentration.

Angular thermal conductivity reveals gap symmetry details.

Insights into superconductivity in Sr2RuO4 and UPd2Al3.

Abstract

Here we consider the universal heat conduction and the angular dependent thermal conductivity in the vortex state for a few nodal superconductors. We present the thermal conductivity as a function of impurity concentration and the angular dependent thermal conductivity in a few nodal superconductors. This provides further insight in the gap symmetry of superconductivity in Sr$_2$RuO$_4$ and UPd$_2$Al$_3$.